add cross-refs to install

service/status.md

@@ -12,6 +12,11 @@ clearly and simply announce downtimes and recovery.
 
 <!-- more in-depth procedure that may require interpretation -->
 
+## Setting up a local development environment
+
+See the [installation](#Installation) section below. Basically, you
+need to install `hugo` and clone the repo (with submodules!).
+
 ## Modifying the site
 
 Issues are in `content/issues`. TODO: Expand.
@@ -84,7 +89,10 @@ supports plain HTML, assuming you have a copy of the git repository.
 The instructions below asssume you have a copy of the git repository
 (currently
 <https://gitlab.torproject.org/tpo/tpa/status-site.git>). If not, you
-could start from scratch using [the example repository](https://github.com/cstate/example) as well.
+could start from scratch using [the example
+repository](https://github.com/cstate/example) as well. Make sure you
+follow the [installation instructions](#Installation) to also clone
+the submodules!
 
 From here on, it is assumed you have a copy of the git repository (or
 the example one).