fix readme

readme.md

@@ -4,7 +4,8 @@
 * If you want to inject custom CA certificates for repository access, create a volume, put these certificates (use the extension .ext) into and mount it to `/usr/local/share/ca-certificates/` of the container when starting it.
 * Start the container with something like
 
-``
+<pre>
+<code>
 docker run \
   -d \
   --rm \
@@ -16,8 +17,10 @@ docker run \
   -e DBPASS=test123 \
   -e ADMINPASS=test123 \
   -v RB_CERTS:/usr/local/share/ca-certificates/ \
-  reviews
-``
+  wollud1969/reviewboard
+</code>
+</pre>
+