Update issue templates

Use the new issue template improvements: https://blog.github.com/2018-05-02-issue-template-improvements/

.github/ISSUE_TEMPLATE/New-Feature-Suggestion.md

@@ -0,0 +1,13 @@
+---
+name: New Feature Suggestion
+about: Request a new feature for Homebrew/brew
+
+---
+
+Please replace this section with:
+- a detailed description of your proposed feature
+- the motivation for the feature
+- how the feature would be relevant to at least 90% of Homebrew users (if it's not: do not open a feature request)
+- what alternatives to the feature you have considered
+
+We will close this issue or ask you to create a pull-request if it's something the maintainers are not actively planning to work on.

.github/ISSUE_TEMPLATE/Reproducible-Bug-Report.md

@@ -1,3 +1,9 @@
+---
+name: Reproducible Bug Report
+about: Submit an issue so we can investigate
+
+---
+
 **Please note we will close your issue without comment if you delete, do not read or do not fill out the issue checklist below and provide ALL the requested information. If you repeatedly fail to use the issue template, we will block you from ever submitting issues to Homebrew again.**
 
 - [ ] are reporting a bug others will be able to reproduce and not asking a question. If you're not sure or want to ask a question do so on our Discourse: https://discourse.brew.sh
@@ -11,12 +17,3 @@ To help us debug your issue please explain:
 - What happened (include command output)
 - What you expected to happen
 - Step-by-step reproduction instructions (by running `brew` commands)
-
-# Features
-Please replace this section with:
-- a detailed description of your proposed feature
-- the motivation for the feature
-- how the feature would be relevant to at least 90% of Homebrew users (if it's not: do not open a feature request)
-- what alternatives to the feature you have considered
-
-We will close this issue or ask you to create a pull-request if it's something the maintainers are not actively planning to work on.