update supported version in docs

README.rst

@@ -35,7 +35,7 @@ Mastodon.py
    mastodon.toot('Tooting from python using #mastodonpy !')
 
 Python wrapper for the Mastodon ( https://github.com/tootsuite/mastodon/ ) API. 
-Feature complete for public API as of version v1.6 and easy to get started with.
+Feature complete for public API as of version v2.0 and easy to get started with.
 
 You can install Mastodon.py via pypi:
 

docs/index.rst

@@ -46,7 +46,7 @@ node running Mastodon by setting api_base_url when creating the
 api object (or creating an app).
 
 Mastodon.py aims to implement the complete public Mastodon API. As
-of this time, it is feature complete for Mastodon version 1.6.
+of this time, it is feature complete for Mastodon version 2.0.
 
 A note about rate limits
 ------------------------