Fix broken image in CONTRIBUTING.md
@@ -37,7 +37,7 @@ If a job fails, click the "details" button and you should be taken to the job's
logs.
![Click the details button on the failing build
-step](docs/images/details-button-location.jpg)
+step](https://raw.githubusercontent.com/matrix-org/dendrite/master/docs/images/details-button-location.jpg)
Scroll down to the failing step and you should see some log output. Scan the
logs until you find what it's complaining about, fix it, submit a new commit,
