Update readme with better apache2 instructions

README.md

@@ -24,6 +24,34 @@ Google can help you find the install instructions which are straight forward.
 
 The only next trick is to change the host directory to the working directory.
 
+1.check where is configuration. Generally, apache2 configuration file is located in /etc/apache2/ folder.
+
+_vi /etc/apache2/apache2.conf_
+in that file, you can find out the location of "DocumentRoot" config
+
+Include sites-enabled/
+that indicates your configration file is in "/etc/apache2/sites-enabled/".
+
+2.Edit DocumentRoot config
+
+vi /etc/apache2/sites-enabled/000-default
+In that file, you can find the "DocumentRoot" like below
+
+DocumentRoot /home/glenturner/catkin\_ws/src/asctec\_pelican\_gui
+And, modify that as you want.
+
+4.Change in apa.conf file to include:
+
+    <Directory /home/glenturner/catkin\_ws/src/ascte\_cpelican\_gui>
+      Options Indexes FollowSymLinks
+      AllowOverride None
+      Require all granted
+    </Directory>
+
+3.Restart apache.
+
+service apache2 restart
+
 ## Getting server up and running#
 
 Here the rosbridge\_suite that is used to link the websocket and ROS: http://wiki.ros.org/rosbridge_suite.