Include issue template

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,22 @@
+**What version of `electron-installer-debian` are you using?**
+
+**What version of `node` and `npm` are you using?**
+
+**What operating system are you using?**
+
+**Can you compile the [example app](https://github.com/unindented/electron-installer-debian/tree/master/example) successfully?**
+
+**If not, paste here the output of the following commands:**
+
+```
+$ git clone https://github.com/unindented/electron-installer-debian.git
+$ cd electron-installer-debian/example
+$ DEBUG='electron-installer-debian' npm run build
+```
+
+**What did you do? Please include the configuration you are using for `electron-installer-debian`.**
+
+**What did you expect to happen?**
+
+**What actually happened?**
+