Merge pull request #1 from xiaobeicn/master

merge from origin
Adjusting the character code
Update str_related.md
Update README.md
Update README.md
Merge pull request #2 from xiaobeicn/master

同步
Update README.md
Update README.md
Merge pull request #10 from feilengcui/master

Merge pull request #1 from xiaobeicn/master
Update README.md
【补充】html标签纠正函数
Merge pull request #11 from overtrue/patch-5

【补充】html标签纠正函数
Merge pull request #3 from xiaobeicn/master

同步
Update README.md
Merge pull request #14 from feilengcui/master

修改markdown
merge from forked