Update README.md

Author: krvajal

README.md

@@ -14,7 +14,7 @@ This extension provides support for the Fortran programming language. It include
 * Code autocompletion (beta)
 * Symbols provider (just functions for now)
 
-
+![symbol_nav](./doc/symbol_nav.png)
 
 ## Settings
 
@@ -59,4 +59,4 @@ The syntax highlight support was imported from [TextMate bundle](https://github.
 
 The idea of using gfortran cames from this awesome [fortran plugin](https://github.com/315234/SublimeFortran) for Sublime Text.
 ## LICENSE 
-MIT
+MIT