Improve README.md

Change-Id: Ibb72903238cd82f66eb9e87c55fcf0c5c414a6ce

README.md

diff --git a/README.md b/README.md
index 80eeeb5..b227fac 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 1. Install the GerritForge/gerrit tap
    ```sh
-   brew tag GerritForg/gerrit
+   brew tag GerritForge/gerrit
    ```
 2. Discover the Gerrit versions available
    ```sh
@@ -14,3 +14,21 @@
    ```sh
    brew install gerrit@3.11.0
    ```
+
+## Gerrit data location
+
+Gerrit data is stored in the Homebrew's var location, `/usr/local/var/gerrit`.
+
+## Starting/stopping Gerrit Code Review
+
+Start Gerrit as usual with the `gerrit.sh` and `start` argument:
+
+```sh
+/usr/local/var/gerrit/bin/gerrit.sh start
+```
+
+Stop Gerrit passing the `stop` argument:
+
+```sh
+/usr/local/var/gerrit/bin/gerrit.sh stop
+```