Update wiki

Signed-off-by: Sahil Gupte <sahilsachingupte@gmail.com>

Author: Ovenoboyo

wiki/Building-from-Source.md

@@ -36,16 +36,13 @@ yarn install
 
 ## Post installation
 
-Native dependencies need to be compiled for electron separately.
+Native dependencies need to be compiled for electron separately. This process is done automatically.
+Incase that does not happen, you can run,
 
-Incase this does not work, you can run
-
-``` bash
-yarn native
+```bash
+yarn postinstall
 ```
 
-To compile native dependencies.
-
 ## Running in development environment
 
 To serve the app, run