docs: Add palettify in Showcase (#206)

Author: Dobromir Hristov

README.md

@@ -71,6 +71,7 @@ These projects are using docsify to generate their sites. Pull requests welcome
 | [hire-me](https://fvcproductions.github.io/hire-me) | A path to getting an awesome tech gig. |
 | [vue-amap](https://elemefe.github.io/vue-amap/) | A Map Component Library Base on Vue 2.x and Gaode Map. |
 | [samlify](https://samlify.js.org) | Node.js SAML2 library |
+| [palettify](https://dobromir-hristov.github.io/palettify/) | A color palette effects assistant |
 
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