Do you have a change you'd like to make? Find a typo? Or perhaps you have an issue that you'd like to discuss?
Then you may either create an issue or open a pull request.
You may create a new issue to discuss a problem or to point out a discrepceny, or something else of the sorts.
You should open a pull request when you have specific changes to make. To do this, go to the file you wish to change, click Edit, and then choose Create a new branch for this commit and start a pull request at the bottom.
Any and all changes should be reviewed by Wes and Jonathan prior to commiting to the master branch. The comments section of pull requests will be used for this.