Release v3.13.1

# Fix

- (Re)add colorless example to the Usage section

.editorconfig

@@ -0,0 +1,13 @@
+root=true
+
+[*]
+charset=utf-8
+insert_final_newline=true
+
+[LICENSE.md]
+indent_size=unset
+indent_style=space
+
+[*.{json,yml}]
+indent_size=2
+indent_style=space

.gitattributes

@@ -4,5 +4,4 @@
 package-lock.json  -diff
 
 # Don't export/archive these files
-.*                 export-ignore
-CONTRIBUTING.md    export-ignore
+.github            export-ignore

CONTRIBUTING.md

@@ -1,25 +1,37 @@
-# Contribution guide
+# Contributing to Simple Icons Font
 
-## 1. Versioning
-This package is being versioned analog to the `simple-icons` package.
-This ensures that installing a version of this package also uses the icons of the `simple-icons` package with the same
-version.
+Simple Icons welcomes contributions and corrections. Before contributing, please make sure you have read the guidelines below. If you decide to contribute anything, please do the following:
 
-Please keep in mind to update the version of this package using the `npm version` command **after** a new version of
-`simple-icons` is being released.
+1. Fork this repository
+1. Create [a new branch][github flow] from the latest `develop`
+1. Start hacking on the new branch
+1. Commit and push to the new branch
+1. Make a pull request
 
+## Local Development
 
-## 2. Building
+### Building Font Locally
 
-1. Building the font
-	```bash
-	npm run build
-	```
+* Make sure you have [NodeJS] installed. At least version 12.0.0 is required.
+* Install the dependencies using `$ npm install`.
+* Build the font using `$ npm run build`.
+* The font files can be found in the `font/` directory.
 
-1. Building the test page
-	```bash
-	npm run build:testpage
-	```
-
-**NOTE:** Using `npm version` or `npm publish` will call the `prepublish` hook which will also build the project
-automatically.
+### Testing Font Locally
+
+* Make sure you have [NodeJS] installed. At least version 12.0.0 is required.
+* Install the dependencies using `$ npm install`.
+* Build the font and the test page using `$ npm test`.
+* Your browser will be opened at `http://localhost:8000/` where all icons should be displayed.
+
+---
+
+# Versioning
+
+This package is being versioned analog to the `simple-icons` package, the details of which can be found in [the contributing guidelines][simple-icons versioning].
+
+Additionally, patches may be used for non-breaking improvements to the font and major releases may be used to introduce breakings changes beyond removed icons.
+
+[github flow]: https://guides.github.com/introduction/flow/
+[NodeJS]: https://nodejs.org/en/download/
+[simple-icons versioning]: https://github.com/simple-icons/simple-icons/blob/develop/CONTRIBUTING.md#versioning

README.md

@@ -50,6 +50,7 @@ Use any of the icons available in simple-icons by adding the following classes t
 Where `[ICON NAME]` is replaced by the icon name, for example:
 
 ```html
+<i class="si si-simpleicons"></i>
 <i class="si si-simpleicons si--color"></i>
 ```
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "simple-icons-font",
-  "version": "3.13.0",
+  "version": "3.13.1",
   "description": "Icon font generated from https://simpleicons.org",
   "homepage": "https://www.simpleicons.org",
   "keywords": [