refactor: Update readme

README.md

@@ -5,23 +5,23 @@ AT communication library and cli tool for cellular modules.
 This library is intended to be used with cellular modules that support AT commands. It provides a simple interface to send and receive AT commands and parse the responses. It also provides a cli tool to send AT commands to the module and receive the responses on the terminal. Both library and cli tool have auto detection of the serial port of the supported cellular modules.
 
 # Supported modules
-Listed in modems.go file in the library.
+Listed in [modems.go](https://github.com/sixfab/atcomv2/blob/master/modems.go) file in the library.
 
-# Installation
+# Installation
 ```
 go get github.com/sixfab/atcomv2
 ```
 
-# Usage
-## Library
+# Usage
+## Library
 Run the example code.
 
 ```
 cd examples
 go run test.go
 ```
 
-## CLI Tool
+## CLI Tool
 Build the cli tool.
 
 ```