docs: drop mention of lua-dev-deps

followup to #51

Author: justinmk

README.md

@@ -13,8 +13,6 @@ CI build.
     - Used by the [unstable PPA](https://launchpad.net/~neovim-ppa/+archive/ubuntu/unstable). PPA builds aren't allowed network access, so a pre-build step fetches this repo to use as input to the build to ensure we have the latest dependencies.
 - `opt/`
     - Manually-managed dependencies (not auto-updated because the origin is unreliable).
-    - `lua-dev-deps` is a combination of *only* the share files of `busted` and
-      `luacheck`. The used versions are specified in the Makefile.
 
 ## Bumping dependency versions
 The Makefile automatically performs the necessary steps to download and package
@@ -23,6 +21,5 @@ and just `make` to package all of them.
 
 ## Dependency-specific information
 ### Lpeg
-We've vendored
-[re.lua](https://github.com/neovim/neovim/blob/master/runtime/lua/vim/re.lua).
-Remember to update it in the neovim repository when bumping the lpeg version.
+We vendored [re.lua](https://github.com/neovim/neovim/blob/master/runtime/lua/vim/re.lua);
+remember to update it in the neovim repository when bumping the lpeg version.