This is a chrome extension for golang users.
When you're at golang's Doc site, this extension will show function's description as tooltip at function list.
So you don't need to scroll down that long page anymore.
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After installed, you can try here:
https://godoc.org/github.com/gin-gonic/gin
https://chrome.google.com/webstore/detail/fjbnfgkjpcnhbhfdnegofefhgpjafjjl
MIT