Add changelog

This will hopefully help us keep track of changes for the next release

CHANGELOG.md

@@ -0,0 +1,11 @@
+### New since 3.11 (WIP)
+
+- Added a changelog!
+
+### 3.11
+
+See <https://www.grammaticalframework.org/download/release-3.11.html>
+
+### 3.10
+
+See <https://www.grammaticalframework.org/download/release-3.10.html>

README.md

@@ -1,4 +1,4 @@
-![GF Logo](doc/Logos/gf1.svg)
+![GF Logo](https://www.grammaticalframework.org/doc/Logos/gf1.svg)
 
 # Grammatical Framework (GF)
 
@@ -39,7 +39,7 @@ or:
 stack install
 ```
 
-For more information, including links to precompiled binaries, see the [download page](http://www.grammaticalframework.org/download/index.html).
+For more information, including links to precompiled binaries, see the [download page](https://www.grammaticalframework.org/download/index.html).
 
 ## About this repository
 

gf.cabal

@@ -15,6 +15,8 @@ tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.10.4
 
 data-dir: src
 extra-source-files:
+  README.md
+  CHANGELOG.md
   WebSetup.hs
   doc/Logos/gf0.png
 data-files: