Instruct annex to add text files to Git

.gitattributes

@@ -1,4 +1,3 @@
 * annex.backend=MD5E
 **/.git* annex.largefiles=nothing
-CHANGELOG.md annex.largefiles=nothing
-README.md annex.largefiles=nothing
+* annex.largefiles=((mimeencoding=binary)and(largerthan=0))