Doc issue templates (reduxjs#3620)

* Add issue/PR templates for docs stuff

* Update bugfix templates

* Remove pasted stuff from PR bugfix template

* Formatting


Former-commit-id: e74d746

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -3,14 +3,32 @@ name: "\U0001F41BBug report"
 about: Something is wrong with Redux.
 ---
 
-**Do you want to request a _feature_ or report a _bug_?**
+## Do you want to request a _feature_ or report a _bug_?
 
 (If this is a _usage question_, please **do not post it here**—post it on [Stack Overflow](http://stackoverflow.com/questions/tagged/redux) instead. If this is not a “feature” or a “bug”, or the phrase “How do I...?” applies, then it's probably a usage question.)
 
-**What is the current behavior?**
+### Prior Issues
 
-**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar.**
+Are there any existing issues or PRs that relate to this problem? If so, link them here.
 
-**What is the expected behavior?**
+## Bug Reports
 
-**Which versions of Redux, and which browser and OS are affected by this issue? Did this work in previous versions of Redux?**
+### What is the current behavior?
+
+### Steps to Reproduce
+
+If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://codesandbox.io or similar.
+
+### What is the expected behavior?
+
+### Environment Details
+
+Which versions of Redux, and which browser and OS are affected by this issue? Did this work in previous versions of Redux?
+
+## New Features
+
+### What is the new or updated feature that you are suggesting?
+
+### Why should this feature be included?
+
+### What docs changes are needed to explain this?

.github/ISSUE_TEMPLATE/documentation-edit.md

@@ -0,0 +1,13 @@
+---
+name: "\U0001F4DD Documentation Fix"
+about: Fixing a problem in an existing docs page
+---
+
+## What docs page needs to be fixed?
+
+- **Section**:
+- **Page**:
+
+## What is the problem?
+
+## What should be changed to fix the problem?

.github/ISSUE_TEMPLATE/documentation-new.md

@@ -0,0 +1,27 @@
+---
+name: "\U0001F4D6 New/Updated Documentation Content"
+about: Adding a new docs page, or updating content in an existing docs page
+---
+
+## What docs page is being added or updated?
+
+- **Section**:
+- **Page**:
+
+## For Adding New Content
+
+### What kind of content category is this page (tutorial, how-to, explanation, reference)?
+
+### Who is the intended target audience?
+
+#### What knowledge are we assuming they have?
+
+### What are the intended results or takeaways from reading this page?
+
+### What is the most critical info they should learn?
+
+## For Updating Existing Content
+
+### What updates should be made to the page?
+
+### Do these updates change any of the assumptions or target audience? If so, how do they change?

.github/PULL_REQUEST_TEMPLATE/bugfix.md

@@ -0,0 +1,34 @@
+---
+name: "\U0001F41B Bug fix or new feature"
+about: Fixing a problem with Redux
+---
+
+## PR Type
+
+### Does this PR add a new _feature_, or fix a _bug_?
+
+### Why should this PR be included?
+
+## Checklist
+
+- [ ] Have you added an explanation of what your changes do and why you'd like us to include them?
+- [ ] Is there an existing issue for this PR?
+  - _link issue here_
+- [ ] Have the files been linted and formatted?
+- [ ] Have the docs been updated to match the changes in the PR?
+- [ ] Have the tests been updated to match the changes in the PR?
+- [ ] Have you run the tests locally to confirm they pass?
+
+## New Features
+
+### What new capabilities does this PR add?
+
+### What docs changes are needed to explain this?
+
+## Bug Fixes
+
+### What is the current behavior, and the steps to reproduce the issue?
+
+### What is the expected behavior?
+
+### How does this PR fix the problem?

.github/PULL_REQUEST_TEMPLATE/documentation-edit.md

@@ -0,0 +1,19 @@
+---
+name: "\U0001F4DD Documentation Fix"
+about: Fixing a problem in an existing docs page
+---
+
+## Checklist
+
+- [ ] Is there an existing issue for this PR?
+  - _link issue here_
+- [ ] Have the files been linted and formatted?
+
+## What docs page needs to be fixed?
+
+- **Section**:
+- **Page**:
+
+## What is the problem?
+
+## What changes does this PR make to fix the problem?

.github/PULL_REQUEST_TEMPLATE/documentation-new.md

@@ -0,0 +1,37 @@
+---
+name: "\U0001F4D6 New/Updated Documentation Content"
+about: Adding a new docs page, or updating content in an existing docs page
+---
+
+## PR Type
+
+**Does this PR add a _new_ page, or update an _existing_ page?**
+
+## Checklist
+
+- [ ] Is there an existing issue for this PR?
+  - _link issue here_
+- [ ] Have the files been linted and formatted?
+
+## What docs page is being added or updated?
+
+- **Section**:
+- **Page**:
+
+## For Adding New Content
+
+### What kind of content category is this page (tutorial, how-to, explanation, reference)?
+
+### Who is the intended target audience?
+
+#### What knowledge are we assuming they have?
+
+### What are the intended results or takeaways from reading this page?
+
+### What is the most critical info they should learn?
+
+## For Updating Existing Content
+
+### What updates should be made to the page?
+
+### Do these updates change any of the assumptions or target audience? If so, how do they change?