Update DEVELOPMENT.md

DEVELOPMENT.md

@@ -1,10 +1,17 @@
-Here's some general stuff to keep in mind, and some work that needs to be done
+Here's some general stuff to keep in mind, and some work that needs to be done:
 
-* Mastodon.py tries to work for python2 as well as python3, so avoid things like annotations,
-  use requests over urllib, et cetera.
-
-* Current TODOs:
-    * Testing - test 2.3 stuff and verify it works: TODO: media updating
-    * 2.4 support:
-        * Document and add tests for webpush
+* If you'd like to contribute, here's some suggestions:
+  * Features are currently up to date and mostly tested, but there are some areas where tests could be 
+    better. Check the codecov page and try to add tests those areas.
+  * Nodeinfo is currently just documented by reference to the spec. It could be documented better.
+  * Nodeinfo currently just retrieves the 2.0 spec version. It should likely attempt to retrieve other
+    versions as well, trying to get the most recent one available.
+  * There's some code duplication in places that could be lessened.
+  * Other implementations of the Mastodon API as well as Mastodon forks exist - it may be good to try to support these:
+    * Figure out what they do different and file issues / document it
+    * Where code can be written to support alternate implementations or different features, write code to do this
+    * Write tests specific to these features
+* Mastodon.py still somewhat tries to work for python2 as well as python3, so avoid things like annotations,
+  use requests over urllib, et cetera. However, python2 is not officially supported and not tested for anymore,
+  and once python2 reaches end of life (January 1st, 2020), this is over with.