updated readme

README.md

@@ -35,11 +35,18 @@ The following steps were reproduced in that order on a fully updated Ubuntu 15.1
     sudo apt-get install openjdk-8-jdk mongodb git maven tomcat8 libgsl0-dev
     ```
     
-    test if MongoDB is available:
+    enable and test MongoDB:
     ```bash
+    sudo systemctl enable mongodb
+    sudo systemctl restart mongodb
     mongo
     ```
     
+    if watchman will be used (see below) additional packages are required for building watchman from source
+    ```bash
+    build-essential autoconf automake python-dev
+    ```
+    
 2. install a recent version of **nodejs** (the official repositories contain old versions)
     ```bash
     curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
@@ -47,11 +54,6 @@ The following steps were reproduced in that order on a fully updated Ubuntu 15.1
     # gulp needs a node executable, ubuntu only creates a nodejs executable
     sudo ln -s /usr/bin/nodejs /usr/bin/node
     ```
-    
-    if watchman will be used (see below) additional packages are required for building watchman from source
-    ```bash
-    build-essential autoconf automake python-dev
-    ```
 
 3. Install **required node packages** for frontend development
     ```bash
@@ -78,7 +80,7 @@ The following steps were reproduced in that order on a fully updated Ubuntu 15.1
     sudo dpkg -i elasticsearch-2.2.0.deb
     rm elasticsearch-2.2.0.deb
     sudo systemctl enable elasticsearch
-    sudo systemctl start elasticsearch
+    sudo systemctl restart elasticsearch
     ```
     
     and test if it is available: