Trivial tweaks to CONTRIBUTING.md

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ## Overview
 
-* Code contributions should follow the [style guide](https://github.com/scriptish/scriptish/wiki/JavaScript-Style-Guide)
+* Code contributions should follow the [style guide](https://github.com/scriptish/scriptish/wiki/JavaScript-Style-Guide).
 * Tests may be requested, and eventually will be required.
 * All code must be reviewed by a reviewer.
 ** Sometimes code will need additional reviews.
@@ -15,8 +15,7 @@ already exist.
 * Make your changes, preferably in a branch named `bug_number`.
 * Make sure there is a test in the branch (reverse the order of this for TDD).
 * Mention your `branch_name`, with a link to it, in the issue thread.
-* Ask for a review from one our reviewers
-* 
+* Ask for a review from one our reviewers.
 
 ## Reviewers