diff --git a/README.md b/README.md
index f3fef36..c4c9ec1 100644
--- a/README.md
+++ b/README.md
@@ -46,11 +46,13 @@ That's it. A fancy start screen for Vim.
 _(Almost all visible features enabled. Colorscheme:
 [vim-janah](https://github.com/mhinz/vim-janah).)_
 
+## Gotchas
+
+The Vim 7.4.898 from macOS 10.12 (`/usr/bin/vim`) comes with a bug, that opens
+files with `readonly` set. Don't use this Vim from 3 years ago. Use homebrew or
+MacPorts to get a current version.
+
 ## Author and Feedback
 
 If you like my plugins, please star them on Github. It's a great way of getting
 feedback. Same goes for issues reports or feature requests.
-
-Contact: [Twitter](https://twitter.com/_mhinz_)
-
-_Get your Vim on!_