closes #214

Author: topepo

issue_template.md

@@ -0,0 +1,52 @@
+---
+name: Bug report or feature request
+about: Describe a bug you've seen or make a case for a new feature
+---
+
+# PLEASE READ: Making a new issue for `parsnip`
+
+
+Please follow the template below. 
+
+If the question is related at all to a specific data analysis, please include a **minimal reprex** (reproducible example). If you've never heard of a reprex before, start by reading "[What is a reprex](https://github.com/tidyverse/reprex#what-is-a-reprex)", and follow the advice further down that page.
+
+Tips: 
+
+ * Here is a good example issue: [#139](https://github.com/tidymodels/parsnip/issues/139#issue-404108897)
+ 
+ * **Issues without a reprex will have a lower priority than the others.** 
+
+ * We don't want you to use confidential data; you can blind the data or simulate other data to demonstrate the issue. The functions [`caret::twoClassSim()`](https://www.rdocumentation.org/packages/caret/versions/6.0-84/topics/SLC14_1) or [`caret::SLC14_1()`](https://www.rdocumentation.org/packages/caret/versions/6.0-84/topics/SLC14_1) might be good tools to simulate data for you. 
+
+ * Unless the problem is explicitly about parallel processing, please run sequentially. 
+
+   * Even if it about parallel processing, please make sure that it runs sequentially first.
+
+ * Please use `set.seed()` to ensure any randomness in your code is reproducible.
+
+ * Please check <https://stackoverflow.com/> or <https://community.rstudio.com/> to see if someone has already asked the same question (see: [Yihui's Rule](https://yihui.name/en/2017/08/so-gh-email/)). 
+
+ * You might need to install these:
+
+```r
+install.packages(c("reprex", "sessioninfo"), repos = "http://cran.r-project.org")
+```
+
+<br>
+
+When are ready to file the issue, please delete the parts above this line:
+< -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
+
+## The problem
+
+I'm having trouble with ... or 
+
+Have you considered ... 
+
+## Reproducible example
+
+Copy your code to the clipboard and run:
+
+```r
+reprex::reprex(si = TRUE)
+```