Add composer.json (#1611)

* Add composer.json

* Update issue template to include Packagist

* Update README.md

.github/ISSUE_TEMPLATE/website_and_package.md

@@ -1,5 +1,5 @@
 ---
-name: Website & NPM Package
+name: Website & Packages
 about: For general issues and improvements
 ---
 
@@ -13,6 +13,7 @@ about: For general issues and improvements
 
 ### This issue concerns <!-- Change the one that applies to `[x]`  -->
   - [ ] The NPM Package
+  - [ ] The Packagist Package
   - [ ] The website
   - [ ] Other, namely: 
 
@@ -23,7 +24,9 @@ about: For general issues and improvements
 Anything relevant, for example:
   - For bugs: "Steps to reproduce" and "Expected behavior"
   - For improvements: An example of a use case
-  - Package issues: What is your node version ($ node --version)
+  - Package issues: Version information
+    - For JavaScript/NodeJS: $ node --version
+    - For PHP/Packagist: $ composer --version
   - Website issues: What browser do you use
   - etc.
 -->

README.md

@@ -76,6 +76,25 @@ console.log(icon);
 */
 ```
 
+### PHP usage
+
+The icons are also available through our Packagist package. To install, simply run:
+
+```
+$ composer require simple-icons/simple-icons
+```
+
+The package can then be used as follows:
+
+```php
+<?php
+
+echo file_get_contents('path/to/package/icons/simple-icons.svg');
+
+// <svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">...</svg>
+?>
+```
+
 ## Third Party Extensions
 
 ### WordPress

composer.json

@@ -0,0 +1,13 @@
+{
+  "name": "simple-icons/simple-icons",
+  "description": "SVG icons for popular brands",
+  "homepage": "https://simpleicons.org/",
+  "keywords": [
+    "svg",
+    "icons"
+  ],
+  "support": {
+    "issues": "https://github.com/simple-icons/simple-icons/issues"
+  },
+  "license": "CC0-1.0"
+}