chore(content): add mic-mac to the list of websites

Merge branch '14-add-mic-mac' into 'master'

Closes #14

See merge request core-services/r3lab/r3-pages!14

websites.md

@@ -19,3 +19,5 @@ permalink: /websites/
 * **[SYSCID](http://datacatalog.elixir-luxembourg.org/limesurvey/index.php?r=survey/index/sid/395386&lang=en)** - Data Management Plan Information Collection
 
 * **[CaSiAn]({{ "web/casian-doc/" | relative_url }})** - CaSiAn Website
+
+* **[MIC-MAC](https://isc.pages.uni.lu/micmac/)** - A Pipeline for High-throughput Microglia Morphology Analysis