update readme

README.md

@@ -4,14 +4,19 @@ This extension add CMake language feature support to Visual Studio Code.
 
 ## Features
 
-+ Syntax highlight
-+ Builtin commands document hover
-+ Builtin commands signature support
++ syntax highlight
++ semantic tokens
++ builtin commands document hover
++ builtin commands signature support
 + commands, variable, properties... auto complete
++ document format
++ go to defination
++ publish diagnostics
++ code action
 
 ## Requirements
 
-You can use it after installing, no addition dependencies required.
+You should have CMake install.
 
 ## Extension Settings
 
@@ -19,3 +24,4 @@ This extension contributes the following settings:
 
 * `cmakeIntelliSence.loggingLevel`: Control the logging level.
 * `cmakeIntelliSence.trace.server`: Set to `verbose` or `message` to trace communication between client and server.
+* `cmakeIntelliSence.cmakePath`: path to cmake executable