Merge pull request #2 from tomcoombs87/patch-3

tiny typo

CONTRIBUTING.md

@@ -56,7 +56,7 @@ contact us at team@sharelatex.com first.
 Contributor License Agreement
 -----------------------------
 
-Before we can accept and contributions of code, we need you to agree to our 
+Before we can accept any contributions of code, we need you to agree to our 
 [Contributor License Agreement](https://sharelatex.wufoo.com/forms/sharelatex-contributor-license-agreement/).
 This is to ensure that you own the copyright of your contribution, and that you
 agree to give us a license to use it in both the open source version, and the version