[PR] [DOCS] unescape characters in example vimrc
[PR] [DOCS] unescape characters in example vimrc

Summary:
The example vimrc snippet for configuring `coc.nvim` contains a line with escaped html characters for `<` and `>`.
Copy and pasting this into a .vimrc does not work.
Replacing these escaped characters with the unescaped characters fixes the problem.
Pull Request resolved: https://github.com/facebook/flow/pull/8389

Reviewed By: panagosg7

Differential Revision: D21920759

Pulled By: mroch

fbshipit-source-id: 77cd9244dcdc5be8194c1da27b6cd0ec61510216

nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow,nmote/flow