chore: update installation method (#308)

Author: CarlJi

README.md

@@ -19,13 +19,13 @@ Enjoy, Have Fun!
 
 ```
 # Mac/AMD64
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-darwin-amd64.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-darwin-amd64.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 # Linux/AMD64
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-linux-amd64.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-linux-amd64.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 # Linux/386
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-linux-386.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-linux-386.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 ```
 

README_zh.md

@@ -20,13 +20,13 @@ goc 是专为 Go 语言打造的一个综合覆盖率收集系统，尤其适合
 
 ```
 # Mac/AMD64
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-darwin-amd64.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-darwin-amd64.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 # Linux/AMD64
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-linux-amd64.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-linux-amd64.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 # Linux/386
-curl -s -L "https://github.com/qiniu/goc/releases/latest" | sed -nE 's!.*"([^"]*-linux-386.tar.gz)".*!https://github.com\1!p' | xargs -n 1 curl -L  | tar -zx && chmod +x goc && mv goc /usr/local/bin
+curl -s https://api.github.com/repos/qiniu/goc/releases/latest | grep "browser_download_url.*-linux-386.tar.gz" | cut -d : -f 2,3 | tr -d \" | xargs -n 1 curl -L | tar -zx && chmod +x goc && mv goc /usr/local/bin
 
 ```