More issue template tweaking

* Move to top-level
* Add to Rbuildignore

.Rbuildignore

@@ -8,6 +8,7 @@ visual_test
 ^cran-comments.md$
 ^data-raw$
 ^CONTRIBUTING\.md$
+^ISSUE_TEMPLATE\.md$
 ^NEWS$
 ^revdep$
 ^\.httr-oauth$

.github/ISSUE_TEMPLATE.md

@@ -1,7 +0,0 @@
-Please describe the issue and explain **why** it is a problem, and what output you expect. If you have a question, on the [mailing list](https://groups.google.com/forum/#!forum/ggplot2) or [stackoverflow](http://stackoverflow.com).
-
-Please include a minimal reprex. The goal of a reprex is to make it as easy as possible for me to recreate your problem so that I can fix it: please [help me help you](https://nypdecider.files.wordpress.com/2014/08/help-me-help-you.gif)! If you've never heard of a reprex before, start by reading "[What is a reprex](https://github.com/jennybc/reprex#what-is-a-reprex)", and follow the advice further down the page. Please do not include session info unless it's explicitly asked for, or you've used `reprex::reprex(..., si = TRUE)` to hide it away.
-
-```r
-# insert reprex here
-```

ISSUE_TEMPLATE.md

@@ -0,0 +1,13 @@
+Please briefly describe your problem and what output you expect. If you have a question, please don't use this form, but instead ask on the mailing list <https://groups.google.com/forum/#!forum/ggplot2> or stackoverflow <http://stackoverflow.com>.
+
+Please include a minimal reprex. The goal of a reprex is to make it as easy as possible for me to recreate your problem so that I can fix it. If you've never heard of a reprex before, start by reading <https://github.com/jennybc/reprex#what-is-a-reprex>, and follow the advice further down the page. Do NOT include session info unless it's explicitly asked for, or you've used `reprex::reprex(..., si = TRUE)` to hide it away.  
+
+Delete these instructions once you have read them.
+
+---
+
+Brief description of the problem
+
+```r
+# insert reprex here
+```