Possible typo

I may be totally wrong.

CONTRIBUTING.md

@@ -3,7 +3,7 @@
 Truths which we believe to be self-evident (adapted from [TextSecure's](https://github.com/WhisperSystems/TextSecure/blob/master/contributing.md))
 
 1. **The answer is not more options.** If you feel compelled to add a preference that's exposed to the user, it's very possible you've made a wrong turn somewhere.
-2. **There are no power users.** The idea that some users "understand" concepts better than others has proven to be, for the post part, false. If anything, "power users" are more dangerous than the test, and we should avoid exposing dangerous functionality to them.
+2. **There are no power users.** The idea that some users "understand" concepts better than others has proven to be, for the most part, false. If anything, "power users" are more dangerous than the test, and we should avoid exposing dangerous functionality to them.
 3. **If it's "like PGP," it's wrong.** PGP is our guide for what not to do.
 4. **It's an asynchronous world.** We wary of anything that is anti-asynchronous: ACKs, protocol confirmations, or anly protocol-level "advisory" message.
 5. **There is no such thing as time**. Protocol ideas that require synchonized clocks are doomed to failure.