Update bug-report.md (#1377)

Fix link to environment collection script

Author: malfet

.github/ISSUE_TEMPLATE/bug-report.md

@@ -24,7 +24,7 @@ If applicable, add screenshots to help explain your problem.
 **Environment**
 
 Please copy and paste the output from our
-[environment collection script](https://raw.githubusercontent.com/pytorch/text/master/torchtext/utils/collect_env.py)
+[environment collection script](https://raw.githubusercontent.com/pytorch/pytorch/master/torch/utils/collect_env.py)
 (or fill out the checklist below manually).
 
 You can get the script and run it with: