Update instructions to use it in the browser

Author: fvictorio

README.md

@@ -86,7 +86,7 @@ parser.visit(ast, {
 
 ## Usage in the browser
 
-A browser-friendly version is available in `dist/solidity-parser.js` in the published version.
+A browser-friendly version is available in `dist/index.iife.js` (along with its sourcemaps file) in the published version.
 
 If you are using webpack, keep in mind that minimizing your bundle will mangle function names, breaking the parser. To fix this you can just set `optimization.minimize` to `false`.
 
@@ -98,7 +98,7 @@ This project is dependant on the [@solidity-parser/antlr](https://github.com/sol
 git clone --recursive
 ```
 
-If you have already cloned this repo, you can load the submodule with 
+If you have already cloned this repo, you can load the submodule with
 
 ```
 git submodule update --init

package.json

@@ -4,6 +4,10 @@
   "description": "A Solidity parser built from a robust ANTLR 4 grammar",
   "main": "dist/index.cjs.js",
   "browser": "dist/index.iife.js",
+  "files": [
+    "dist/**/*",
+    "src/**/*"
+  ],
   "types": "dist/index.d.ts",
   "scripts": {
     "antlr": "sh scripts/antlr.sh",