Merge pull request #12 from code4rena-dev/0xsi/update-gitignore

[UPD] gitignore to keep heroku.yml

Author: jacobheun

.gitignore

@@ -25,6 +25,7 @@
 !/tap-snapshots/
 !/test/
 !/tsconfig*.json
+!/heroku.yml
 
 # re-ignore typescript output artifacts
 /knexfile.js