Merge pull request #2011 from webpack/Munter-patch-1

Fix broken link to opencollective webpack page

Author: Munter

src/content/contribute/index.md

@@ -9,7 +9,7 @@ contributors:
   - tbroadley
 ---
 
-The people who contribute to webpack do so for the love of open source, our users and ecosystem, and most importantly, pushing the web forward together. Because of our [Open Collective](https://opencollective.com//webpack) model for funding and transparency, we are able to funnel support and funds through contributors, dependent projects, and the contributor and core teams. To make a donation, simply click the button below...
+The people who contribute to webpack do so for the love of open source, our users and ecosystem, and most importantly, pushing the web forward together. Because of our [Open Collective](https://opencollective.com/webpack) model for funding and transparency, we are able to funnel support and funds through contributors, dependent projects, and the contributor and core teams. To make a donation, simply click the button below...
 
 <div align="center">
   <a href="https://opencollective.com/webpack/donate" target="_blank">