(pub): publish v0.2.0

- minor bump due to addition of optional arguments `clone` and
  `createCanvas`
- several updates to README included as well

package.json

@@ -1,6 +1,6 @@
 {
   "name": "trim-canvas",
-  "version": "0.1.2",
+  "version": "0.2.0",
   "description": "A tiny library for trimming whitespace from a canvas element",
   "main": "build/index.js",
   "files": [