Update README (add go1.17 installation)

Signed-off-by: hahwul <[email protected]>

README.md

@@ -23,20 +23,26 @@
 Gee is tool of stdin to each files and stdout. It is similar to the tee command, but there are more functions for convenience. In addition, it was written as go. which provides output to stdout and files. In this process, it has various processing functions for lines such as replace, prefix, and suffix, so it can be used as a pipeline configuration or as a utility for testing. For more information, see the usage and case of study below!
 
 ## 🚀 Installation
-From source (anythings used golang)
+From source
+Go1.17
 ```
-▶ GO111MODULE=on go get -v github.com/hahwul/gee
+go install -v github.com/hahwul/gee@latest
+```
+
+Go1.16
+```
+GO111MODULE=on go get -v github.com/hahwul/gee
 ```
 With homebrew (only macos)
 ```
-▶ brew tap hahwul/gee
-▶ brew install gee
+brew tap hahwul/gee
+brew install gee
 ```
 Download from [release](https://github.com/hahwul/gee/releases) page. (macos,linux,freebsd,windows)
 ```
-▶ wget https://github.com/hahwul/gee/releases/download/v1.0.4/gee_1.0.4_linux_amd64.tar.gz
-▶ tar -xvf gee_1.0.4_linux_amd64.tar.gz
-▶ cp ./gee /usr/bin
+wget https://github.com/hahwul/gee/releases/download/v1.0.4/gee_1.0.4_linux_amd64.tar.gz
+tar -xvf gee_1.0.4_linux_amd64.tar.gz
+cp ./gee /usr/bin
 ```
 
 ## ☄️ Usage