typos: fix typos in CONTRIBUTING.md

CONTRIBUTING.md

@@ -2,13 +2,13 @@
 ## Contributing Guidelines
 - Do not send any pull requests to the master branch
   - Any pull requests sent to master will be closed
-  - Send pull requets to the current beta branch (usually named as an unreleased version)
-- Please tell us why you think this change is nessessary
-  - We dont want to spend lots of time browsing through your code changes
+  - Send pull requests to the current beta branch (usually named as an unreleased version)
+- Please tell us why you think this change is necessary
+  - We don't want to spend lots of time browsing through your code changes
   - Describe your changes
-- Do not repoen a pull request if we closed it for not being a nessary feature
+- Do not reopen a pull request if we closed it for not being a necessary feature
 - Do not change credits in any of the files
-- If making a new language file, follow the local naming convencion
-  - localization-[LANGUAGE](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes#)_[TERROTORY](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements).yml. You can find the 2 letter codes in the links.
+- If making a new language file, follow the local naming convention
+  - localization-[LANGUAGE](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes#)_[TERRITORY](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2#Officially_assigned_code_elements).yml. You can find the 2-letter codes in the links.
 - Common sense, please...
 - File subject to change in the future