Update github.md and index.html

Author: abelsu7

docs/basic/github.md

@@ -182,6 +182,11 @@ cloc --exclude-dir=node_modules --exclude-list-file=cloc.txt ./
 
 - [![](logo/github.svg)scaffold - Generate scaffold project layout for Go](https://github.com/catchplay/scaffold)
 
+### Validator
+
+- [![](logo/github.svg)go-playground/validator - Go Struct and Field validation![](logo/star.svg)](https://github.com/go-playground/validator/tree/v9)
+- [![](logo/godoc.png ':size=16')package validator | GoDoc![](logo/star.svg)](https://godoc.org/gopkg.in/go-playground/validator.v9)
+
 ## Github 状态监控
 
 - [![](logo/github.svg)Github Status![](logo/star.svg)](https://www.githubstatus.com)

docs/basic/logo/godoc.png

@@ -127,7 +127,7 @@
  coverpage: true,
  basePath: '/',
  loadSidebar: true,
- subMaxLevel: 2,
+ subMaxLevel: 3,
  loadNavbar: true,
  mergeNavbar: false,
  search: {