Update some comments

Author: bbayles

cdblib/cdblib.py

@@ -12,10 +12,10 @@
 
 # Structs for 32-bit databases
 read_2_le4 = Struct('<LL').unpack
-read_2_le8 = Struct('<QQ').unpack
+write_2_le4 = Struct('<LL').pack
 
 # Structs for 64-bit databases
-write_2_le4 = Struct('<LL').pack
+read_2_le8 = Struct('<QQ').unpack
 write_2_le8 = Struct('<QQ').pack
 
 # Encoders for keys

docs/versions.rst

@@ -3,7 +3,7 @@ Version history
 
 * `Version 3.0.0 <https://github.com/dw/python-pure-cdb/releases/tag/v2.3.0>`_
     * This package now supports Python 3 only. For a version that works with Python 2, see `this older release <https://github.com/dw/python-pure-cdb/releases/tag/v2.2.0>`
-    * Added `python-cdb` compatibility module.
+    * Added the `python-cdb` compatibility module
 * `Version 2.2.0 <https://github.com/dw/python-pure-cdb/releases/tag/v2.2.0>`_
     * Added non-`strict` mode for convenience when using non-binary keys.
     * API docs are now available at ReadTheDocs.