fix: update README to template (#933)

* fix: update README to template

* fix: more README fixes from template

* fix: more README fixes from template

Author: wescpy

README.md

@@ -1,12 +1,16 @@
-# Google Maps JavaScript MarkerClusterer
-
-[![npm](https://img.shields.io/npm/v/@googlemaps/markerclusterer)](https://www.npmjs.com/package/@googlemaps/markerclusterer)
-![Build](https://github.com/googlemaps/js-markerclusterer/workflows/Test/badge.svg)
+[![npm](https://img.shields.io/npm/v/@googlemaps/markerclusterer)][npm-pkg]
+![Tests/Build Status](https://github.com/googlemaps/js-markerclusterer/workflows/Test/badge.svg)
 ![Release](https://github.com/googlemaps/js-markerclusterer/workflows/Release/badge.svg)
+![Stable](https://img.shields.io/badge/stability-stable-green)
 [![codecov](https://codecov.io/gh/googlemaps/js-markerclusterer/branch/main/graph/badge.svg)](https://codecov.io/gh/googlemaps/js-markerclusterer)
-![GitHub contributors](https://img.shields.io/github/contributors/googlemaps/js-markerclusterer?color=green)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
-[![](https://github.com/jpoehnelt/in-solidarity-bot/raw/main/static//badge-flat.png)](https://github.com/apps/in-solidarity)
+[![solidarity](https://github.com/jpoehnelt/in-solidarity-bot/raw/main/static//badge-flat.png)](https://github.com/apps/in-solidarity)
+
+![GitHub contributors](https://img.shields.io/github/contributors/googlemaps/js-markerclusterer?color=green)
+[![Discord](https://img.shields.io/discord/676948200904589322?color=6A7EC2&logo=discord&logoColor=ffffff)][Discord server]
+[![GitHub License](https://img.shields.io/github/license/googlemaps/js-markerclusterer?color=blue)](LICENSE)
+
+# Google Maps JavaScript MarkerClusterer
 
 ## Description
 
@@ -18,9 +22,16 @@ The library creates and manages per-zoom-level clusters for large amounts of mar
 
 See the [history section](#history) and [migration section](#migration) for how this library relates to [@google/markerclusterer][@google/markerclusterer] and [@googlemaps/markerclustererplus][@googlemaps/markerclustererplus].
 
-## Install
+## Requirements
+
+* [Sign up with Google Maps Platform]
+* A Google Maps Platform [project] with the [**Maps Javascript API**][maps-sdk] enabled
+* An [API key] associated with the project above
+* [@googlemaps/markerclusterer NPM package][npm-pkg]
+
+## Installation
 
-Available via npm as the package [@googlemaps/markerclusterer](https://www.npmjs.com/package/@googlemaps/markerclusterer).
+Install the [@googlemaps/markerclusterer NPM package][npm-pkg] with:
 
 ```
 npm i @googlemaps/markerclusterer
@@ -36,17 +47,19 @@ When adding via unpkg, the `MarkerClusterer` can be accessed at `markerClusterer
 
 #### TypeScript
 
-This library uses the official TypeScript typings for Google Maps Platform, [@types/google.maps](https://www.npmjs.com/package/@types/google.maps).
+This library uses the official TypeScript typings for Google Maps Platform, [@types/google.maps](https://npmjs.com/package/@types/google.maps).
 
 ```sh
 npm i -D @types/google.maps
 ```
 
 ## Documentation
 
-The [reference documentation](https://googlemaps.github.io/js-markerclusterer/) is generated from the TypeScript definitions.
+The [documentation] is generated from the TypeScript definitions.
 
-## Examples
+## Usage
+
+### Examples
 
 ```js
 import { MarkerClusterer } from "@googlemaps/markerclusterer";
@@ -57,7 +70,7 @@ const markerCluster = new MarkerClusterer({ map, markers });
 
 View the package in action:
 
-- [Algorithm Comparisons](https://googlemaps.github.io/js-markerclusterer/public/algorithms) - This example demonstrates the different algorithms. Please note that spacing and many other options can be changed for each algorithm. 
+- [Algorithm Comparisons](https://googlemaps.github.io/js-markerclusterer/public/algorithms) - This example demonstrates the different algorithms. Please note that spacing and many other options can be changed for each algorithm.
 
 
 
@@ -95,11 +108,51 @@ The API of [@googlemaps/markerclusterer][@googlemaps/markerclusterer] has change
 ```
 
 - The `MarkerClusterer` accepts a single options argument instead of positional parameters.
-- The traditional `GridAlgorithm` is still supported, **but is not the default**. The default is [supercluster](https://www.npmjs.com/package/supercluster) which uses [k-d trees](https://en.wikipedia.org/wiki/K-d_tree) for improved performance.
+- The traditional `GridAlgorithm` is still supported, **but is not the default**. The default is [supercluster](https://npmjs.com/package/supercluster) which uses [k-d trees](https://en.wikipedia.org/wiki/K-d_tree) for improved performance.
 - Styling of clusters has been simplifed and moved to the renderer interface.
 - The `MarkerClusterer` class is still an instance of `google.maps.OverlayView`, but uses `google.maps.Marker`s instead of `google.maps.Overlay` to render the clusters. This solves issues related to the usage of map panes and click handlers.
 - @googlemaps/markerclusterer supports Marker and Map [a11y improvements](https://cloud.google.com/blog/products/maps-platform/improved-accessibility-maps-javascript-api).
 
-[@googlemaps/markerclustererplus]: https://www.npmjs.com/package/@googlemaps/markerclustererplus
-[@google/markerclusterer]: https://www.npmjs.com/package/@google/markerclusterer
-[@googlemaps/markerclusterer]: https://www.npmjs.com/package/@googlemaps/markerclusterer
+## Contributing
+
+Contributions are welcome and encouraged! If you'd like to contribute, send us a [pull request] and refer to our [code of conduct] and [contributing guide].
+
+## Terms of Service
+
+This library uses Google Maps Platform services. Use of Google Maps Platform services through this library is subject to the Google Maps Platform [Terms of Service].
+
+This library is not a Google Maps Platform Core Service. Therefore, the Google Maps Platform Terms of Service (e.g. Technical Support Services, Service Level Agreements, and Deprecation Policy) do not apply to the code in this library.
+
+## Support
+
+This library is offered via an open source [license]. It is not governed by the Google Maps Platform Support [Technical Support Services Guidelines, the SLA, or the [Deprecation Policy]. However, any Google Maps Platform services used by the library remain subject to the Google Maps Platform Terms of Service.
+
+This library adheres to [semantic versioning] to indicate when backwards-incompatible changes are introduced. Accordingly, while the library is in version 0.x, backwards-incompatible changes may be introduced at any time.
+
+If you find a bug, or have a feature request, please [file an issue] on GitHub. If you would like to get answers to technical questions from other Google Maps Platform developers, ask through one of our [developer community channels]. If you'd like to contribute, please check the [contributing guide].
+
+You can also discuss this library on our [Discord server].
+
+[@googlemaps/markerclustererplus]: https://npmjs.com/package/@googlemaps/markerclustererplus
+[@google/markerclusterer]: https://npmjs.com/package/@google/markerclusterer
+
+[API key]: https://developers.google.com/maps/documentation/javascript/get-api-key
+[maps-sdk]: https://developers.google.com/maps/documentation/javascript
+[documentation]: https://googlemaps.github.io/js-markerclusterer
+[npm-pkg]: https://npmjs.com/package/@googlemaps/markerclusterer)
+
+[code of conduct]: CODE_OF_CONDUCT.md
+[contributing guide]: CONTRIBUTING.md
+[Deprecation Policy]: https://cloud.google.com/maps-platform/terms
+[developer community channels]: https://developers.google.com/maps/developer-community
+[Discord server]: https://discord.gg/hYsWbmk
+[file an issue]: https://github.com/googlemaps/js-markerclusterer/issues/new/choose
+[license]: LICENSE
+[project]: https://developers.google.com/maps/documentation/javascript/cloud-setup#enabling-apis
+[pull request]: https://github.com/googlemaps/js-markerclusterer/compare
+[semantic versioning]: https://semver.org
+[Sign up with Google Maps Platform]: https://console.cloud.google.com/google/maps-apis/start
+[similar inquiry]: https://github.com/googlemaps/js-markerclusterer/issues
+[SLA]: https://cloud.google.com/maps-platform/terms/sla
+[Technical Support Services Guidelines]: https://cloud.google.com/maps-platform/terms/tssg
+[Terms of Service]: https://cloud.google.com/maps-platform/terms