add coverage all and update readme

Author: Suchita Doshi

.gitignore

@@ -1,3 +1,6 @@
 node_modules
 *.log
-.DS_Store
+.DS_Store
+
+# Coverage directory used by tools like istanbul
+coverage

README.md

@@ -4,6 +4,7 @@
 
 [![npm](https://img.shields.io/npm/v/ember-tracked-properties-codemod.svg?label=npm)](https://www.npmjs.com/package/ember-tracked-properties-codemod)
 
+[![Coverage Status](https://coveralls.io/repos/github/ember-codemods/ember-tracked-properties-codemod/badge.svg?branch=master)](https://coveralls.io/github/ember-codemods/ember-tracked-properties-codemod?branch=master)
 
 A codemod for transforming your ember app code to start using `@tracked` properties.
 
@@ -17,7 +18,7 @@ A codemod for transforming your ember app code to start using `@tracked` propert
 ## Usage
 
 ```
-npx ember-tracked-properties-codemod path/of/files/ or/some**/*glob.hbs
+npx ember-tracked-properties-codemod path/of/files/ or/some**/*glob.js
 ```
 
 The codemod accepts the following options:

package.json

@@ -21,18 +21,24 @@
   },
   "bin": "./bin/cli.js",
   "scripts": {
-    "test": "codemod-cli test",
+    "coveralls": "cat ./coverage/lcov.info | node node_modules/.bin/coveralls",
+    "test": "codemod-cli test --coverage",
     "update-docs": "codemod-cli update-docs"
   },
   "jest": {
-    "testEnvironment": "node"
+    "testEnvironment": "node",
+    "collectCoverageFrom": [
+      "transforms/tracked-properties/index.js",
+      "transforms/tracked-properties/utils/helper.js"
+    ]
   },
   "dependencies": {
     "codemod-cli": "^2.1.0"
   },
   "devDependencies": {
     "@babel/plugin-proposal-class-properties": "^7.7.4",
     "@babel/plugin-proposal-decorators": "^7.7.4",
+    "coveralls": "^3.0.9",
     "eslint": "^5.9.0",
     "eslint-config-prettier": "^3.3.0",
     "eslint-plugin-prettier": "^3.0.0",

yarn.lock

@@ -1876,6 +1876,17 @@ [email protected]:
     js-yaml "^3.13.1"
     parse-json "^4.0.0"
 
+coveralls@^3.0.9:
+  version "3.0.9"
+  resolved "https://registry.yarnpkg.com/coveralls/-/coveralls-3.0.9.tgz#8cfc5a5525f84884e2948a0bf0f1c0e90aac0420"
+  integrity sha512-nNBg3B1+4iDox5A5zqHKzUTiwl2ey4k2o0NEcVZYvl+GOSJdKBj4AJGKLv6h3SvWch7tABHePAQOSZWM9E2hMg==
+  dependencies:
+    js-yaml "^3.13.1"
+    lcov-parse "^1.0.0"
+    log-driver "^1.2.7"
+    minimist "^1.2.0"
+    request "^2.88.0"
+
 cross-spawn@^5.0.1:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
@@ -4296,6 +4307,11 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
+lcov-parse@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcov-parse/-/lcov-parse-1.0.0.tgz#eb0d46b54111ebc561acb4c408ef9363bdc8f7e0"
+  integrity sha1-6w1GtUER68VhrLTECO+TY73I9+A=
+
 left-pad@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.3.0.tgz#5b8a3a7765dfe001261dde915589e782f8c94d1e"
@@ -4397,6 +4413,11 @@ lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
+log-driver@^1.2.7:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.7.tgz#63b95021f0702fedfa2c9bb0a24e7797d71871d8"
+  integrity sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==
+
 log-symbols@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-3.0.0.tgz#f3a08516a5dea893336a7dee14d18a1cfdab77c4"
@@ -5754,7 +5775,7 @@ request-promise-native@^1.0.5:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-request@^2.87.0:
+request@^2.87.0, request@^2.88.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==