Refactored documentation for Docker hub workflow

- Readme size lowered to 18KB
- Documents created in doc/ directory
- faq.md, firewall.md, development.md
- Title svg as absolute path for Docker hub
- Re-enabled Docker hub description workflow

.github/CONTRIBUTING.md

@@ -15,3 +15,15 @@ Contributions are [released](https://help.github.com/articles/github-terms-of-se
 
 - [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
 - [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
+
+## Contributors
+
+Thanks for all the contributions, whether small or not so small!
+
+- [@JeordyR](https://github.com/JeordyR) for testing the Mullvad version and opening a [PR with a few fixes](https://github.com/qdm12/private-internet-access-docker/pull/84/files) 👍
+- [@rorph](https://github.com/rorph) for a [PR to pick a random region for PIA](https://github.com/qdm12/private-internet-access-docker/pull/70) and a [PR to make the container work with kubernetes](https://github.com/qdm12/private-internet-access-docker/pull/69)
+- [@JesterEE](https://github.com/JesterEE) for a [PR to fix silly line endings in block lists back then](https://github.com/qdm12/private-internet-access-docker/pull/55) 📎
+- [@elmerfdz](https://github.com/elmerfdz) for a [PR to add timezone information to have correct log timestampts](https://github.com/qdm12/private-internet-access-docker/pull/51) 🕙
+- [@Juggels](https://github.com/Juggels) for a [PR to write the PIA forwarded port to a file](https://github.com/qdm12/private-internet-access-docker/pull/43)
+- [@gdlx](https://github.com/gdlx) for a [PR to fix and improve PIA port forwarding script](https://github.com/qdm12/private-internet-access-docker/pull/32)
+- [@janaz](https://github.com/janaz) for keeping an eye on [updating things in the Dockerfile](https://github.com/qdm12/private-internet-access-docker/pull/8)

.github/workflows/dockerhub-description.yml

@@ -1,16 +1,7 @@
 name: Docker Hub description
 on:
   push:
-    branches-ignore:
-      - '**'
-    #branches: [master]
-    paths:
-      - README.md
-      - .github/workflows/dockerhub-description.yml
-  pull_request:
-    branches-ignore:
-      - '**'
-    #branches: [master]
+    branches: [master]
     paths:
       - README.md
       - .github/workflows/dockerhub-description.yml