fix(package): change references to master to main to support default branch transition

Author: bhough

README.md

@@ -5,8 +5,8 @@
 
 A lightweight toolset for writing styles in JavaScript. ✨
 
-![Node CI Test](https://github.com/styled-components/polished/workflows/Node%20CI%20Test/badge.svg?branch=master)
-[![codecov](https://codecov.io/gh/styled-components/polished/branch/master/graph/badge.svg)](https://codecov.io/gh/styled-components/polished)
+![Node CI Test](https://github.com/styled-components/polished/workflows/Node%20CI%20Test/badge.svg?branch=main)
+[![codecov](https://codecov.io/gh/styled-components/polished/branch/main/graph/badge.svg)](https://codecov.io/gh/styled-components/polished)
 [![Github All Releases](https://img.shields.io/npm/dm/polished.svg)](https://npmcharts.com/compare/polished)
 
 ```sh

package.json

@@ -1,6 +1,6 @@
 {
   "name": "polished",
-  "version": "3.6.5",
+  "version": "3.6.6",
   "description": "A lightweight toolset for writing styles in Javascript.",
   "license": "MIT",
   "author": "Brian Hough <[email protected]> (https://polished.js.org)",

src/internalHelpers/_errors.js

@@ -31,7 +31,7 @@ function format(...args) {
     b.push(args[c])
   }
 
-  b.forEach(d => {
+  b.forEach((d) => {
     a = a.replace(/%[a-z]/, d)
   })
 
@@ -47,7 +47,7 @@ export default class PolishedError extends Error {
   constructor(code: string | number, ...args: Array<any>) {
     if (process.env.NODE_ENV === 'production') {
       super(
-        `An error occurred. See https://github.com/styled-components/polished/blob/master/src/internalHelpers/errors.md#${code} for more information.`,
+        `An error occurred. See https://github.com/styled-components/polished/blob/main/src/internalHelpers/errors.md#${code} for more information.`,
       )
     } else {
       super(format(ERRORS[code], ...args))

src/internalHelpers/test/_errors.test.js

@@ -19,7 +19,7 @@ describe('errors', () => {
     expect(() => {
       math('1px + sqrt 4')
     }).toThrow(
-      'An error occurred. See https://github.com/styled-components/polished/blob/master/src/internalHelpers/errors.md#38 for more information.',
+      'An error occurred. See https://github.com/styled-components/polished/blob/main/src/internalHelpers/errors.md#38 for more information.',
     )
   })
 })