Merge pull request #1889 from secade/clarify-install-instructions

Add minimum vim version requirement to README

README.md

@@ -33,10 +33,13 @@ This plugin adds Go language support for Vim, with the following main features:
 
 ## Install
 
+vim-go requires at least Vim 7.4.1689 or Neovim 0.2.2.
+
 The [**latest stable release**](https://github.com/fatih/vim-go/releases/latest) is the
 recommended version to use. If you choose to use the master branch instead,
 please do so with caution; it is a _development_ branch.
 
+
 vim-go follows the standard runtime path structure. Below are some helper lines
 for popular package managers:
 

doc/vim-go.txt

@@ -76,6 +76,12 @@ tools developed by the Go community to provide a seamless Vim experience.
 ==============================================================================
 INSTALL                                                           *go-install*
 
+vim-go requires at least Vim 7.4.1689 or Neovim 0.2.2. On macOS, if you are
+still using your system version of vim, you can use homebrew to keep your
+version of Vim up-to-date with the following terminal command:
+>
+  brew install vim
+
 The latest stable release, https://github.com/fatih/vim-go/releases/latest, is
 the recommended version to use. If you choose to use the master branch
 instead, please do so with caution; it is a _development_ branch.