docs: add triager guide

closes #4055
closes #4211

Author: gireeshpunathil

Contributing.md

@@ -14,6 +14,7 @@ contributors can be involved in decision making.
 * A **Committer** is a subset of contributors who have been given write access to the repository.
 * A **TC (Technical Committee)** is a group of committers representing the required technical
 expertise to resolve rare disputes.
+* A **Triager** is a subset of contributors who have been given triage access to the repository.
 
 ## Logging Issues
 
@@ -56,6 +57,35 @@ discuss pending contributions in order to find a resolution. It is expected that
 small minority of issues be brought to the TC for resolution and that discussion and
 compromise among committers be the default resolution mechanism.
 
+## Becoming a Triager
+
+Anyone can become a triager! Read more about the process of being a triager in
+(the triage process document)[Triager-Guide.md].
+
+(Open an issue in `expressjs/express` repo)[https://github.com/expressjs/express/issues/new]
+to request the triage role. State that you have read and agree to the
+(Code of Conduct)[Code-of-Conduct.md] and details of the role.
+
+Here is an example issue content you can copy and paste:
+
+```
+Title: Request triager role for <your github username>
+
+I have read and understood the project's Code of Conduct.
+I also have read and understood the process and best practices around Express triaging.
+
+I request for a triager role for the following GitHub organizations:
+
+jshttp
+pillarjs
+express
+```
+
+Once you have opened your issue, a member of the TC will add you to the `triage` team in
+the organizations requested. They will then close the issue.
+
+Happy triaging!
+
 ## Becoming a Committer
 
 All contributors who land a non-trivial contribution should be on-boarded in a timely manner,

Triager-Guide.md

@@ -0,0 +1,63 @@
+# Express Triager Guide
+
+## Issue Triage Process
+
+When a new issue or pull request is opened the issue will be labled with `needs triage`.
+If a traige team member is available they can help make sure all the required information
+is provided. Depending on the issue or PR there are several next labels they can add for further
+classification:
+
+* `needs triage`: This can be kept if the triager is unsure which next steps to take
+* `awaiting more info`: If more info has been requested from the author, apply this label.
+* `question`: User questions which do not appear to be bugs or enahncements.
+* `discuss`: Topics for discussion. Might end in an `enhancement` or `question` label.
+* `bug`: Issues that present a reasonable conviction there is a reproducible bug.
+* `enhancement`: Issues that are found to be a reasonable candidate feature additions.
+
+In all cases, issues may be closed by maintainers if they don't receive timely response when
+further information is sought, or when additional questions are asked.
+
+## Approaches and Best Practices for getting into triage contributions
+
+Review the organization's [StatusBoard](https://expressjs.github.io/statusboard/),
+pay special attention to these columns: stars, watchers, open issues and contributors.
+This gives you a general idea about the criticality and health of the repository.
+Pick a few projects based on that criteria, your interests, and skills (existing or aspiring).
+
+Review the project's contribution guideline if present. In a nutshell,
+commit to the community's standards and values. Review the
+documentation, for most of the projects it is just the README.md, and
+make sure you understand the key APIs, semantics, configurations, and use cases.
+
+It might be helpful to write your own test apps to re-affirm your
+understanding of the key functions. This may identify some gaps in
+documentation, record those as they might be good PR's to open.
+Skim through the issue backlog; identify low hanging issues and mostly new ones.
+From those, attempt to recreate issues based on the OP description and
+ask questions if required. No question is a bad question!
+
+## Removal of Triage Role
+
+There are a few cases where members can be removed as triagers:
+
+- Breaking the CoC or project contributor guidelines
+- Abuse or misuse of the role as deemed by the TC
+- Lack of participation for more than 6 months
+
+If any of these happen we will discuss as a part of the triage portion of the regular TC meetings.
+If you have questions feel free to reach out to any of the TC members.
+
+## Other Helpful Hints:
+
+- Everyone is welcome to attend the [Express Technical Committee Meetings](https://github.com/expressjs/discussions#expressjs-tc-meetings), and as a triager it might help to get a better idea of what's happening with the project.
+- When exploring the modules functionality there are a few helpful steps:
+  - Turn on `DEBUG=*` (see https://www.npmjs.com/package/debug) to get detailed log information
+  - It is also a good idea to do live debugging to follow the control flow, try using `node --inspect`
+  - It is a good idea to make at least one pass of reading through the entire source
+- When reviewing the list of open issues there are some common types and suggested actions:
+  - New/unattended issues or simple questions: A good place to start
+  - Hard bugs & ongoing discussions: always feel free to chime in and help
+  - Issues that imply gaps in documentation: open PRs with changes or help the user to do so
+- For recurring issues, it is helpful to create functional examples to demonstrate (publish as gists or a repo)
+- Review and identify the maintainers. If necessary, at-mention one or more of them if you are unsure what to do
+- Make sure all your interactions are professional, welcoming and respectful to the parties involved.