start contributor faq (#5344)

Signed-off-by: austin <[email protected]>

Author: asmacdo

website/content/en/docs/contribution-guidelines/faq.md

@@ -0,0 +1,12 @@
+---
+title: FAQ
+weight: 200
+---
+
+#### Q: If I find a problem, should I file a Pull Request or an Issue?
+
+A: We suggest that you start by filing an issue to potentially save
+contributors the implementation time if the change cannot be accepted
+for some reason. However, if it is easier to just submit a PR that is
+always fine. If you do choose to start with a Pull Request, please make
+sure that the motivation is included.