Update README.md (#773)

Author: vharseko

README.md

@@ -7,12 +7,9 @@
 [![License](https://img.shields.io/badge/license-CDDL-blue.svg)](https://github.com/OpenIdentityPlatform/OpenAM/blob/master/LICENSE.md)
 [![Downloads](https://img.shields.io/github/downloads/OpenIdentityPlatform/OpenAM/total.svg)](https://github.com/OpenIdentityPlatform/OpenAM/releases)
 [![Docker](https://img.shields.io/docker/pulls/openidentityplatform/openam.svg)](https://hub.docker.com/r/openidentityplatform/openam)
-[![Gitter](https://img.shields.io/gitter/room/nwjs/nw.js.svg)](https://gitter.im/OpenIdentityPlatform/OpenAM)
 [![Top language](https://img.shields.io/github/languages/top/OpenIdentityPlatform/OpenAM.svg)](https://github.com/OpenIdentityPlatform/OpenAM)
 [![Code size in bytes](https://img.shields.io/github/languages/code-size/OpenIdentityPlatform/OpenAM.svg)](https://github.com/OpenIdentityPlatform/OpenAM)
 
-# Project Overview 
-
 Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements, and Web Services Security.
 
 Cross Domain Single Sign On (CDSSO), SAML 2.0, OAuth 2.0 & OpenID Connect ensure that OpenAM integrates easily with legacy, custom, and cloud applications without requiring any modifications. 
@@ -48,9 +45,6 @@ This project is licensed under the [Common Development and Distribution License
 * [OpenAM Web Policy Agent Apache 2.4](https://github.com/OpenIdentityPlatform/OpenAM-Web-Agents#downloads) (Linux x64)
 * [OpenAM Web Policy Agent (IIS  Windows x32/x64 ZIP)](https://ci.appveyor.com/api/buildjobs/cnebrw2f43my9vxr/artifacts/IIS_WINNT_4.1.0.zip)
 
-
-**[OpenAM Quick Start Guide](https://github.com/OpenIdentityPlatform/OpenAM/wiki/Quick-Start-Guide)**
-
 ## How-to Build OpenAM from Source
 To build OpenAM from source you should use JDK 8 or higher
 
@@ -77,49 +71,19 @@ Run OpenAM from source:
 mvn cargo:run -f OpenAM/openam-server
 ```
 
-The next step is then to go to [http://login.domain.com:8080/openam](http://login.domain.com:8080/openam) where you'll see the OpenAM welcome page
-
----
-**Important Note**
-
-You must allocate at least 1024m (2048m with embedded OpenDJ) heap memory for OpenAM JVM using -Xmx option. 
-
-For example, `-Xmx2048m`
-
----
-
-## How To Guides
-
-* [Config OpenAM as OAuth2 Service Provider](https://github.com/OpenIdentityPlatform/OpenAM/wiki/Config-OpenAM-as-OAuth2-Service-Provider)
-* [How to Add Authorization and Protect Your Application With OpenAM and OpenIG Stack](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Add-Authorization-and-Protect-Your-Application-With-OpenAM-and-OpenIG-Stack)
-* [How to Customise OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Customise-OpenAM)
-* [How to disable XUI by default](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-disable-XUI-by-default)
-* [How to make OpenAM log more verbose](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-make-OpenAM-log-more-verbose)
-* [How To Run OpenAM in Kubernetes](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-To-Run-OpenAM-in-Kubernetes)
-* [How to Setup 2FA with Google Authenticator in OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Setup-2FA-with-Google-Authenticator-in-OpenAM)
-* [How To Setup Active Directory Authentication In OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-To-Setup-Active-Directory-Authentication-In-OpenAM)
-* [How to setup Kerberos Authentication with OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-setup-Kerberos-Authentication-with-OpenAM)
-* [How to Setup WebAuthn Authentication in OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Setup-WebAuthn-Authentication-in-OpenAM)
-* [How to Start OpenAM and OpenDJ in Separate Docker Contaners](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Start-OpenAM-and-OpenDJ-in-Separate-Docker-Contaners)
-* [How to Use Apache Cassandra as User DataStore in OpenAM](https://github.com/OpenIdentityPlatform/OpenAM/wiki/How-to-Use-Apache-Cassandra-as-User-DataStore-in-OpenAM)
-* [Migrate OpenAM to Apache Cassandra without Single Point of Failure](https://github.com/OpenIdentityPlatform/OpenAM/wiki/Migrate-OpenAM-to-Apache-Cassandra-without-Single-Point-of-Failure)
-* [OpenAM Monitoring Using Prometheus](https://github.com/OpenIdentityPlatform/OpenAM/wiki/OpenAM-Monitoring-Using-Prometheus)
-* [Creating a Custom Authentication Module](https://github.com/OpenIdentityPlatform/OpenAM/wiki/Write-a-custom-authentication-module)
+The next step is then to go to [http://login.domain.com:8080/openam](http://login.domain.com:8080/openam) where you'll see the OpenAM welcome 
 
 
-## Support and Mailing List Information
-* OpenAM Community Wiki: https://github.com/OpenIdentityPlatform/OpenAM/wiki
-* OpenAM Community Discussions: https://github.com/OpenIdentityPlatform/OpenIG/discussions
-* OpenAM Community Archive: https://groups.google.com/d/forum/open-identity-platform-openam
-* OpenAM Community on Gitter: https://gitter.im/OpenIdentityPlatform/OpenAM
-* OpenAM Community Mailing List: [email protected]
-* OpenAM Commercial support RFP: [email protected] (English, Russian)
+## Support
+* OpenAM Community [documentation](https://github.com/OpenIdentityPlatform/OpenAM/wiki)
+* OpenAM Community [discussions](https://github.com/OpenIdentityPlatform/OpenAM/discussions)
+* OpenAM Community [issues](https://github.com/OpenIdentityPlatform/OpenAM/issues)
+* OpenAM [commercial support](https://github.com/OpenIdentityPlatform/.github/wiki/Approved-Vendor-List)
 
 ## Contributing
 Please, make [Pull request](https://github.com/OpenIdentityPlatform/OpenAM/pulls)
 
-## Thanks for OpenAM
-* Sun Access Manager
-* Sun OpenSSO
+## Thanks 🥰
+* Sun Access Manager/OpenSSO
 * Oracle OpenSSO
 * Forgerock OpenAM