Issue template: fix env list ordering (facebook#2697)

Author: alexeyraspopov

.github/ISSUE_TEMPLATE.md

@@ -81,8 +81,8 @@
 
 1. `node -v`: 
 2. `npm -v`:
-4. `yarn --version` (if you use Yarn):
-3. `npm ls react-scripts` (if you haven’t ejected): 
+3. `yarn --version` (if you use Yarn):
+4. `npm ls react-scripts` (if you haven’t ejected): 
 
 Then, specify: