docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1,6 +1,6 @@
 # express-asset-file-cache-middleware
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 ![Build Status](https://github.com/julianrubisch/express-asset-file-cache-middleware/workflows/Node%20CI/badge.svg)
@@ -129,6 +129,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="http://www.julianrubisch.at"><img src="https://avatars0.githubusercontent.com/u/4352208?v=4" width="100px;" alt=""/><br /><sub><b>Julian Rubisch</b></sub></a><br /><a href="https://github.com/julianrubisch/express-asset-file-cache-middleware/commits?author=julianrubisch" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/memalloc"><img src="https://avatars2.githubusercontent.com/u/7209927?v=4" width="100px;" alt=""/><br /><sub><b>memalloc</b></sub></a><br /><a href="https://github.com/julianrubisch/express-asset-file-cache-middleware/pulls?q=is%3Apr+reviewed-by%3Amemalloc" title="Reviewed Pull Requests">👀</a></td>
   </tr>
 </table>