Update ISSUE_TEMPLATE.md

.github/ISSUE_TEMPLATE.md

@@ -1,6 +1,7 @@
-Thanks so much for filing an issue! Please fill out the following:
+Thanks so much for filing an issue or feature request! Please fill out the following (wherever relevant):
 
-react-native-code-push version:
-react-native version:
-iOS/Android version:
-Does this repro on a simulator, or only on a physical device?
+* react-native-code-push version:
+* react-native version:
+* iOS/Android version:
+* Does this repro on a simulator, or only on a physical device?
+* Repro steps: