fix(server): cloning bitbucket branches named such as feature/JIRA-123-summary

components/server/src/bitbucket/README.md

@@ -0,0 +1,27 @@
+# BitBucket Integration tests
+
+To run the BitBucket integration tests via `npm test` the `GITPOD_TEST_TOKEN_BITBUCKET` environment variable needs to be defined:
+
+```bash
+export GITPOD_TEST_TOKEN_BITBUCKET='{ "username": "$username", "value": "$applicationPassword", "scopes": [] }'
+```
+
+Replace `$username` / `$applicationPassword` with the integration test username and application password.
+
+## Running a single test
+
+Use `test.only` thus:
+
+```js
+test('Your cool test', function (done) {
+    //...
+}
+```
+
+becomes
+
+```js
+test.only('Your cool test', function (done) {
+    //...
+}
+```