📝 add LICENSE.md; v3 CodePen links

Author: desandro

.github/contributing.md

@@ -2,12 +2,12 @@
 
 ### Reduced test case required
 
-All bug reports and problem issues require a [**reduced test case**](https://css-tricks.com/reduced-test-cases/). Create one by forking any one of the [CodePen demos](https://codepen.io/desandro/pens/tags/?grid_type=list&selected_tag=draggabilly-docs&sort_order=asc) from [the docs](https://draggabilly.desandro.com). Try forking these CodePens:
+All bug reports and problem issues require a [**reduced test case**](https://css-tricks.com/reduced-test-cases/). Create one by forking any one of the [CodePen demos](https://codepen.io/collection/aMeRBE?grid_type=list&sort_by=item_created_at) from [the docs](https://draggabilly.desandro.com). Try forking these CodePens:
 
 **CodePens**
 
-+ [basic jQuery demo](https://codepen.io/desandro/pen/yyRapr)
-+ [basic vanilla JS demo](https://codepen.io/desandro/pen/EadgXx)
++ [basic jQuery demo](https://codepen.io/desandro/pen/BawYQeq)
++ [basic vanilla JS demo](https://codepen.io/desandro/pen/mdBXOZL)
 
 **Test cases**
 

.github/issue_template.md

@@ -1,3 +1,3 @@
 <!-- Thanks for submitting an issue! All bug reports and problem issues require a **reduced test case**. Create one by forking any one of the CodePen examples from the docs. See guidelines link above. -->
 
-**Test case:** https://codepen.io/desandro/pen/yyRapr
+**Test case:** https://codepen.io/desandro/pen/BawYQeq

LICENSE.md

@@ -0,0 +1,7 @@
+Copyright (c) 2013-2021 [David DeSandro](https://desandro.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -4,7 +4,7 @@
 
 [draggabilly.desandro.com](https://draggabilly.desandro.com)
 
-Rad because it supports IE10+ and touch devices.
+Rad because it supports mouse and touch devices.
 
 Draggabilly v3.0.0
 
@@ -342,9 +342,7 @@ draggie.position
 + `x` - **Type:** _Number_
 + `y` - **Type:** _Number_
 
-## Module loaders
-
-### Webpack & Browserify
+## Webpack & Browserify
 
 Install [Draggabilly with npm](https://www.npmjs.com/package/draggabilly).
 
@@ -381,9 +379,9 @@ $('.draggable').draggabilly({...})
 
 Draggabilly v3 supports Chrome 49+, Firefox 41+, Safari 14+ (mobile & desktop), and Edge 12+.
 
-- Use [Draggabilly v2](https://github.com/desandro/draggabilly/releases/tag/v2.3.0) for IE10 support and Safari 8 support.
+- Use [Draggabilly v2](https://github.com/desandro/draggabilly/releases/tag/v2.4.1) for IE10 support and Safari 8 support.
 - Use [Draggabilly v2.1](https://github.com/desandro/draggabilly/releases/tag/v2.1.1) for Android 4+ and Safari 6+ support.
-- Use [Draggabilly v1](https://draggabilly.desandro.com/v1) for IE8 & 9, and Android 2.3+ support.
+- Use [Draggabilly v1](https://github.com/desandro/draggabilly/releases/tag/v1.2.4) for IE8 & 9, and Android 2.3+ support.
 
 ## License