docs: add link to docs site from issue templates (testing-library#221)

* docs: add link to docs site from issue templates

* docs: link to docs site in issue templates

* docs: add link to docs site in issue template

Author: alexkrolick

.github/ISSUE_TEMPLATE.md

@@ -9,6 +9,11 @@ understand what's going on and fix the issue.
 I'll probably ask you to submit the fix (after giving some direction). If you've
 never done that before, that's great! Check this free short video tutorial to
 learn how: http://kcd.im/pull-request
+
+
+If this is an issue with the documentation, please file an issue in the docs repo:
+https://github.com/alexkrolick/testing-library-docs
+
 -->
 
 - `dom-testing-library` version:

.github/ISSUE_TEMPLATE/Bug_Report.md

@@ -16,6 +16,8 @@ We'll probably ask you to submit the fix (after giving some direction). If
 you've never done that before, that's great! Check this free short video
 tutorial to learn how: http://kcd.im/pull-request
 
+If this is an issue with the documentation, please file an issue in the docs repo:
+https://github.com/alexkrolick/testing-library-docs
 -->
 
 - `dom-testing-library` version:

.github/ISSUE_TEMPLATE/Feature_Request.md

@@ -19,6 +19,9 @@ It'd be great if after the discussion you're the one who submits the PR that
 implements this feature. If you've never done that before, that's great! Check
 this free short video tutorial to learn how: http://kcd.im/pull-request
 
+
+If this is an issue with the documentation, please file an issue in the docs repo:
+https://github.com/alexkrolick/testing-library-docs
 -->
 
 ### Describe the feature you'd like: