Update on Code webpage to archive outdated information and guide newcomers (#484)

* Update CONTRIBUTING.md

* Create archive

* Revert "Create archive"

This reverts commit 0f56c4e.

* Create readme

* Rename CONTRIBUTORS to archive/CONTRIBUTORS

Contributors can be seen on code page

* Rename AUTHORS to archive/AUTHORS

Has not been maintained in 9 years.

* Revert "Create readme"

This reverts commit b751c07.

* Update README.md

* Update README.md

Author: eliasmbd

CONTRIBUTING.md

@@ -1,25 +1,33 @@
-Want to contribute? Great! First, read this page (including the small print at the end).
+# Join the Community
 
-### Before you contribute
+- Visit [__GTFS.org__](https://gtfs.org/) the official GTFS documentation website.
+- Join [__Slack__](https://share.mobilitydata.org/slack) and introduce yourself to the community.
+- Subscribe to the [__GTFS Digest__](https://groups.google.com/g/gtfs-digest) for monthly updates about all things GTFS.
+- Join [__GTFS Changes__](https://groups.google.com/g/gtfs-changes) and [__GTFS Realtime__](https://groups.google.com/g/gtfs-realtime) Google Groups to stay informed on development. 
+
+# GTFS Governance
+
+The GTFS Specification is not set in stone. Instead, it is an open specification developed and maintained by the community of transit agencies, developers, and other stakeholders who use GTFS. It is expected that this community of producers and consumers of GTFS data will have proposals for extending the spec to enable new capabilities.
+
+To formalize this process, we've established the GTFS Governance framework, which includes the Specification Amendment Process.
+
+-   [GTFS Schedule - Specification Amendment Process](https://github.com/google/transit/blob/master/gtfs/CHANGES.md)
+
+-   [GTFS Realtime - Specification Amendment Process](https://github.com/google/transit/blob/master/gtfs-realtime/CHANGES.md)
+
+## Before you contribute
 Before we can use your code, you must sign the
 [Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual)
-(CLA), which you can do online. The CLA is necessary mainly because you own the
+(CLA), which you can do online. 
+
+The CLA is necessary mainly because you own the
 copyright to your changes, even after your contribution becomes part of our
 codebase, so we need your permission to use and distribute your code. We also
 need to be sure of various other things—for instance that you'll tell us if you
-know that your code infringes on other people's patents. You don't have to sign
-the CLA until after you've submitted your code for review and a member has
-approved it, but you must do it before we can put your code into our codebase.
-Before you start working on a larger contribution, you should get in touch with
-us first through the issue tracker with your idea so that we can help out and
+	@@ -15,10 +32,6 @@ us first through the issue tracker with your idea so that we can help out and
 possibly guide you. Coordinating up front makes it much easier to avoid
 frustration later on.
 
-### Code reviews
-All submissions, including submissions by project members, require review. We
-use Github pull requests for this purpose.
-
 ### The small print
 Contributions made by corporations are covered by a different agreement than
 the one above, the
-[Software Grant and Corporate Contributor License Agreement](https://cla.developers.google.com/about/google-corporate).

README.md

@@ -1,6 +1,27 @@
-The repository contains specification to manipulate General Transit
-Feed Specification (GTFS) and GTFS Realtime:
-* [GTFS](/gtfs/README.md)
-* [GTFS Realtime](/gtfs-realtime/README.md)
+# General Transit Feed Specification (GTFS) 
+The General Transit Feed Specification (GTFS) is an [Open Standard](https://www.interoperablemobility.org/definitions/#open_standard) used to distribute relevant information about transit systems to riders. It allows public transit agencies to publish their transit data in a format that can be consumed by a wide variety of software applications. Today, the GTFS data format is used by thousands of public transport providers.GTFS consists of two formats: GTFS Schedule and GTFS Realtime.
 
-Please visit https://gtfs.org for information.
+[Read more about GTFS](https://gtfs.org/)
+
+## Get Monthly Updates on GTFS Developments
+The GTFS Digest is a monthly newsletter by [MobilityData](https://mobilitydata.org/) providing an overview of GTFS developments, discussions within our community, and ways you can get involved in shaping the future of GTFS.
+
+### **🔔 [Subscribe to the GTFS Digest](https://groups.google.com/g/gtfs-updates)**
+
+GTFS relies on community contributions. Please help us capture GTFS developments by sharing your updates for our next digest to: [[email protected]](mailto:[email protected])
+
+## Useful Resources
+### Getting Started with GTFS
+- Visit [GTFS.org](https://gtfs.org/) to learn more about GTFS
+  - An overview of [GTFS Schedule](https://gtfs.org/schedule/)
+  - An overview of [GTFS Realtime](https://gtfs.org/realtime/)
+
+### Contribute to GTFS and join the Community
+
+- [Learn how you can contribute to GTFS Development](https://github.com/google/transit/blob/master/CONTRIBUTING.md)
+- Join [__Slack__](https://share.mobilitydata.org/slack) and introduce yourself to the community.
+- Join [__GTFS Changes__](https://groups.google.com/g/gtfs-changes) and [__GTFS Realtime__](https://groups.google.com/g/gtfs-realtime) Google Groups to stay informed on development.
+
+
+### What is GitHub? 
+* [Getting Started with GitHub](https://docs.github.com/en/get-started)