The doc updater needs the r/w SSH key too

Add it to the container to ensure we DTRT.

Author: conormcd

.circleci/config.yml

@@ -124,6 +124,9 @@ jobs:
     docker:
       - image: clojure:lein-2.9.1
     steps:
+      - add_ssh_keys:
+          fingerprints:
+            - "d2:c7:c5:4d:9d:8c:55:b9:99:49:93:3f:ee:04:29:de"
       - checkout
       - attach_workspace:
           at: /workspace