Add appveyor build status and don't include node_modules.

Author: Azganoth

README.md

@@ -1,6 +1,7 @@
 # Tree Sitter Lua
 
 [![Build Status](https://travis-ci.org/Azganoth/tree-sitter-lua.svg?branch=master)](https://travis-ci.org/Azganoth/tree-sitter-lua)
+[![Build status](https://ci.appveyor.com/api/projects/status/8rnu3n839orxosys/branch/master?svg=true)](https://ci.appveyor.com/project/Azganoth/tree-sitter-lua/branch/master)
 
 Lua grammar for tree-sitter.
 

package.json

@@ -34,7 +34,6 @@
     "tree-sitter-cli": "^0.13.15"
   },
   "files": [
-    "node_modules",
     "src",
     "binding.gyp",
     "grammar.js",