Minor updates to changelog

Author: tleonhardt

CHANGELOG.md

@@ -1,18 +1,18 @@
-## 0.9.4 (TBD, 2018)
+## 0.9.4 (August TBD, 2018)
 * Bug Fixes
-    * Fixed bug where ``preparse`` wasn't getting called
+    * Fixed bug where ``preparse`` was not getting called
 * Enhancements
     * Improved implementation of lifecycle hooks to support a plugin
       framework, see ``docs/hooks.rst`` for details.
     * New dependency on ``attrs`` third party module
     * Added ``matches_sorted`` member to support custom sorting of tab-completion matches
 * Deprecations
     * Deprecated the following hook methods, see ``hooks.rst`` for full details:
-       * ``cmd2.Cmd.preparse()`` - equivilent functionality available
+       * ``cmd2.Cmd.preparse()`` - equivalent functionality available
          via ``cmd2.Cmd.register_postparsing_hook()``
-       * ``cmd2.Cmd.postparsing_precmd()`` - equivilent functionality available
+       * ``cmd2.Cmd.postparsing_precmd()`` - equivalent functionality available
          via ``cmd2.Cmd.register_postparsing_hook()``
-       * ``cmd2.Cmd.postparsing_postcmd()`` - equivilent functionality available
+       * ``cmd2.Cmd.postparsing_postcmd()`` - equivalent functionality available
          via ``cmd2.Cmd.register_postcmd_hook()``
 
 ## 0.8.9 (August TBD, 2018)