Added links to community, added active projects, added tab out to ext…

…ernal links (#322)

* Squashed commit of the following:

commit fe496d1
Author: isabelle-dr <[email protected]>
Date:   Tue Feb 6 14:29:31 2024 -0500

    Removing translations (#306)

    * dummy commit

    * Remove translations part one

    * removing translations

    * Make changes based on review

* Squashed commit of the following:

commit 30ce1ef
Author: Sergio Delgado Rodriguez <[email protected]>
Date:   Tue Feb 6 15:46:57 2024 -0500

    new_GTFS.org_structure (#307)

    Adding new files for new GTFS architecture. This change does not remove the old files.

commit fe496d1
Author: isabelle-dr <[email protected]>
Date:   Tue Feb 6 14:29:31 2024 -0500

    Removing translations (#306)

    * dummy commit

    * Remove translations part one

    * removing translations

    * Make changes based on review

* Updated Platforms.md and active_projects.md

- Added grids to platforms for better visibility.
- Added mailling lists and other community links to platforms.md
-Added active projects to active projects.

* Merge branch 'staging' into design-sprint/elias

- Fixed links in Community
- Added Active Projects in Community
- All external links open a tab

docs/community/get_involved.md

@@ -1,13 +1,36 @@
 <div class="grid cards" markdown>
 
-- :simple-slack: Join __Slack__ for quick discussions, questions, and sharing.
-- :material-newspaper-variant: Subscribe to the __GTFS Digest__ for monthly updates about all things GTFS.
-- :fontawesome-solid-user-group: Join __GTFS Changes__ to stay informed on development. 
-- :simple-github: Visit __GitHub__ to post issues, participate in discussions around changes, and, propose changes. 
+- :simple-slack: Join [__Slack__](https://share.mobilitydata.org/slack) and introduce yourself to the community.
+- :material-newspaper-variant: Subscribe to the [__GTFS Digest__](https://groups.google.com/g/gtfs-digest) for monthly updates about all things GTFS.
+- :fontawesome-solid-user-group: Join [__GTFS Changes__](https://groups.google.com/g/gtfs-changes) Google Group to stay informed on development. 
+- :simple-github: Visit [__GitHub__](https://github.com/google/transit) to post issues, participate in discussions around changes, and, propose changes. 
 
 </div>
 
-### Mailing Lists
+## Active projects
+
+The community is constantly developing new additions to the specification that could require discussions and working group meetings to accomplish their larger goals in an open source setting. Working group meetings are consensus building discussions led by a facilitator, and attended by developpers, and interested contributors.   
+
+### GTFS-Fares v2
+GTFS-Fares v2 aims at improving the current Fares representation in GTFS by introducing new features like: fare products, rider categories, fare media, and more. These concepts will allow data producers to model different fare structures such as: zone-based, time-based, and inter-agency fares. 
+
+[Learn more](#gtfs-fares-v2){ .md-button }
+[Working Group](#){ .md-button } 
+
+
+### GTFS-Flex
+Flex is a GTFS Schedule extension project that aims to facilitate discoverability of Demand Responsive Transportation Services.
+
+[Learn more](#gtfs-flex){ .md-button }
+
+
+### GTFS Trip-Modifications
+Trip-Modifications are modifications done to a trip to modify its shape, remove stops that are not served anymore, and potentially add temporary stops. Trip-Modifications is mainly used in a detour use case.
+
+[Learn more](#){ .md-button }
+
+
+## Mailing Lists
 
 There are a number of mailing lists that can be good resources when you have questions about public transit data, software, formats like GTFS and GTFS-realtime, and other issues:
 
@@ -26,7 +49,7 @@ There are a number of mailing lists that can be good resources when you have que
 Check with your local transit agency to see if they have a mailing list of their own.
 
 
-###Other Community Resources
+## Other Community Resources
 Find other communities and resourses related to GTFS
 
 - [German Open Transport Meetup](https://github.com/transportkollektiv/meetup/wiki) - You can participate in a [biweekly](https://hackmd.okfn.de/opentransportmeetup#) meetup of the German-speaking open transport community.

docs/documentation/index.md

@@ -0,0 +1 @@
+Placeholder Text

mkdocs.yml

@@ -128,6 +128,9 @@ plugins:
         'realtime/guiding-principles.md': 'realtime/process.md'
         'realtime/revision-history.md': 'realtime/process.md'
         'realtime/extensions.md': 'realtime/process.md'
+  - privacy:
+      links_attr_map:
+        target: _blank
 nav:
   - Home: index.md
   - Getting started: