Small documentation typo

Author: Yasumoto

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,7 @@
 * [ ] I've read and understood the [Contributing guidelines](./CONTRIBUTING.md) and have done my best effort to follow them.
 * [ ] I've read and agree to the [Code of Conduct](./CODE_OF_CONDUCT.md).
 * [ ] I've been mindful about doing atomic commits, adding documentation to my changes, not refactoring too much.
-* [ ] I've a descriptive title and added any useful information for the reviewer. Where appropriate, I've attached a screenshot and/or screencast (gif preferrably).
+* [ ] I've a descriptive title and added any useful information for the reviewer. Where appropriate, I've attached a screenshot and/or screencast (gif preferably).
 * [ ] I've written tests to cover the new code and functionality included in this PR.
 * [ ] I've read, agree to, and signed the [Contributor License Agreement (CLA)](https://docs.google.com/a/slack-corp.com/forms/d/1q_w8rlJG_x_xJOoSUMNl7R35rkpA7N6pUkKhfHHMD9c/viewform).
 
@@ -12,4 +12,4 @@
 > e.g. Fixes #206 and closes #230
 
 #### Test strategy
-> e.g. Add tests around whatsit production.
+> e.g. Add tests around whatsit production.