Syntax for a branch from a PR
@@ -24,6 +24,10 @@ Some things to note:
```
@explosion-bot please test_gpu --thinc-branch develop
```
+You can also specify a branch from an unmerged PR:
+```
+@explosion-bot please test_gpu --thinc-branch refs/pull/633/head
+```
## Troubleshooting
