Update readme, added prerequisites

README.MD

@@ -9,7 +9,7 @@ Orignal project: https://github.com/openvehicles/Open-Vehicle-Monitoring-System-
 The fork is fixed at Version 3.3.002 with their provided modified ESP-IDF
 ## To-Do List
 
-- [ ] Integrate my server to assistant and server recommendation and add CA as well
+- [X] Integrate my server to assistant and server recommendation and add CA as well
 - [ ] Integrate PIDs for reading values like odometer, battery cell voltage and so on, via OBD connector (because of gateway read-only)
 - [ ] Accessing CAN bus after gateway to get full access to controllers use all available CAN bus interfaces OVMS hardware has
 - [ ] Get more useful PIDs with direct access of CAN busses
@@ -20,6 +20,16 @@ The fork is fixed at Version 3.3.002 with their provided modified ESP-IDF
 
 Successful build will be uploaded to my own ovms-server at https://ovms.bit-cloud.de/firmware or under Releases tab so self host them
 
+## Build prerequisites
+
+If you have a freshly installed Debian or Ubuntu based operating system, you can install prerequisites with following commands. On other distributions you need to install these with your package manager
+
+```
+apt install git build-essential pyhton3 python3-pip python ncurses-dev flex bison gperf dos2unix
+wget https://bootstrap.pypa.io/pip/2.7/get-pip.py
+sudo python2.7 get-pip.py
+```
+
 ## Build
 
 Clone my repository and init submodules