fix(doc): correct instructions for dev mode

Author: noorul

README.md

@@ -149,7 +149,7 @@ From SBT shell, simply type "reStart".  This uses a default configuration file.
 path to an alternative config file.  You can also specify JVM parameters after "---".  Including all the
 options looks like this:
 
-    job-server/reStart /path/to/my.conf --- -Xmx8g
+    job-server-extras/reStart /path/to/my.conf --- -Xmx8g
 
 Note that reStart (SBT Revolver) forks the job server in a separate process.  If you make a code change, simply
 type reStart again at the SBT shell prompt, it will compile your changes and restart the jobserver.  It enables