feat: Add projects and endorsements page

Author: haroldadmin

docs/docs/projects.md

@@ -0,0 +1,11 @@
+# Projects and Endorsements
+
+- `NetworkResponseAdapter` receives ~19,000 downloads a month according to Jitpack stats (as of Jan 26, 2022).
+- The Android app for [SkipTheDishes](https://www.skipthedishes.com/) uses this library (source: Gil Goldzweig Goldbaum, Twitter)
+- A popular medium article for Retrofit error handling recommends this library: [Handling errors with Retrofit and Coroutines in a single place](https://medium.com/@douglas.iacovelli/how-to-handle-errors-with-retrofit-and-coroutines-33e7492a912)
+- Donn Felker [endorsed](https://twitter.com/donnfelker/status/1471182521354305543) the library.
+
+If you'd like to see your project featured here, please comment on this issue:
+[https://github.com/haroldadmin/NetworkResponseAdapter/issues/55](https://github.com/haroldadmin/NetworkResponseAdapter/issues/55)
+
+You can also contact me via [Twitter](https://twitter.com/haroldadmin).

docs/mkdocs.yml

@@ -34,6 +34,7 @@ nav:
       - Introduction: ./index.md
       - Extensions: ./extensions.md
       - Special Cases: ./special-cases.md
+      - Projects: ./projects.md
   - Upgrade Guides:
       - v5: ./upgrade-guides/v5.md
   - API Reference: