docs(README): Update supported env

Author: jourdain

README.md

@@ -54,14 +54,11 @@ In general VTK tries to be as portable as possible; the specific configurations
 
 vtk.js supports the following development environments:
 
-- Node 5+
-- NPM 3+
+- Node 8+
+- NPM 5+
 
-and the following browsers:
-
-- Firefox 45+
-- Chrome 50+
-- Safari 9.1+
+and we use [babel-preset-env](https://github.com/babel/babel/tree/master/packages/babel-preset-env) with the last 2 versions to browsers target. 
+But when built from source this could be adjusted to support any browser as long they provide WebGL.
 
 Documentation
 =============

package.json

@@ -41,8 +41,8 @@
     },
     "scripts": {
         "size": "size-limit --why --config ./webpack.config.js",
-        "validate": "prettier --config ./prettier.config.js --list-different \"Sources/**/*.js\"",
-        "reformat": "prettier --config ./prettier.config.js --write \"Sources/**/*.js\"",
+        "validate": "prettier --config ./prettier.config.js --list-different \"Sources/**/*.js\" \"Examples/**/*.js\"",
+        "reformat": "prettier --config ./prettier.config.js --write \"Sources/**/*.js\" \"Examples/**/*.js\"",
         "reformat-only": "prettier --single-quote --trailing-comma es5 --print-width 80 --arrow-parens always --write",
         "doc": "kw-doc -c ./Documentation/config.js",
         "doc:www": "npm t -- --single-run && kw-doc -c ./Documentation/config.js -s",