Update README.md

Author: xiantang

README.md

@@ -19,7 +19,12 @@ NOTE: This tool has nothing to do with hot-deploy for production.
 ## Features
 
 * Colorful log output
-* Customize build or binary command
+* Customize build or 
+
+
+
+
+ary command
 * Support excluding subdirectories
 * Allow watching new directories after Air started
 * Better building process
@@ -29,7 +34,7 @@ Support air config fields as arguments:
 
 if you just want to config build command and run command, you can use like following command without config file:
 
-`air --build.cmd "go build -o bin/api cmd/run.go" --build.bin "./api"`
+`air --build.cmd "go build -o bin/api cmd/run.go" --build.bin "./bin/api"`