chore(polyfill): fix gulp polyfill references

scripts/npm/polyfills.readme.md

@@ -1,27 +1,34 @@
-## polyfills.js 
-Contains all polyfills needed to work on the largest range of devices. This is the default polyfill. 
+## polyfills.js
+
+Contains all polyfills needed to work on the largest range of devices. This is the default polyfill.
+
+### Targets:
 
-##### Targets: 
 - Android 4.4.2 and above
 - iOS back to iOS 8
 
-##### Includes:
+### Includes:
+
 - All ES6 features
 - zone.js
 - ES7 reflection
 
 
 ## polyfills.modern.js
+
 A limited of set of polyfills to work on more modern browsers. This file limits the number of ES6 polyfills which are already natively included in modern browsers.
 
-##### Targets: 
+### Targets:
+
 - Android 5.0 and above
 - iOS 9 and above
 
-##### Includes:
+### Includes:
+
 - zone.js
-- ES7 reflection, 
+- ES7 reflection,
 - ES6 polyfills, except for:
+
 new regexp features,
 math features,
 symbols,
@@ -30,13 +37,16 @@ weak maps / weak sets
 
 
 ## polyfills.ng.js
+
 Only the required polyfill for Angular 2. This does not come with any ES6 polyfills. Note that all polyfill files listed here included the required polyfills for Angular 2 to work correctly.
 
-##### Targets:
+### Targets:
+
 - Android 5.0 and above
 - iOS 10 and above
 
-##### Includes:
+### Includes:
+
 - zone.js
 - ES7 reflection