"startify: Can't read viminfo fi

根据提示看文档即可：
Perhaps the problem is that the viminfo file..

- doesn't exist
- is invalid
- is empty
- can't be read (check permissions)

I suggest the following steps:

1) Create a new directory:

    $ mkdir -p ~/.vim/files/info

2) Put this into your vimrc:

    set viminfo='100,n$HOME/.vim/files/info/viminfo

完成两步后，退出vim重新打开VIIM，问题解决。

中间遇到了linux新手常踩的坑，不注意大小写。
要注意放入vimrc一句代码的大小写，因为将HOME写成小写，花了不少时间来找问题。