doc: update README

Author: mingrammer

README.md

@@ -10,14 +10,12 @@ It is useful for testing some tasks which require log data like amazon kinesis l
 
 ## Installation
 
-### Using go get
+### Using go install
 
 ```bash
-go get -u github.com/mingrammer/flog
+go install github.com/mingrammer/flog
 ```
 
-It is recommended to also run `dep ensure` to make sure that the dependencies are in the correct versions.
-
 ### Using [homebrew](https://brew.sh)
 
 ```