Add docsify-navbar-fixed plugin

#284

README.md

@@ -146,8 +146,6 @@ A curated list of awesome things related to [docsify](https://docsify.js.org)
 - [CASE Doc](https://docs.case.app/) - Documentation for [CASE](https://case.app/), an Open Source tool for building web applications in minutes.
 - [文档箱](https://yjava.cn/) - Documentation for thoughts.
 - [LIGMATV](https://ligmatv.vercel.app) - Home of my open blogs 📖.
-- [UIBUILDER for Node-RED documentation](https://totallyinformation.github.io/node-red-contrib-uibuilder) - Documentation for the UIBUILDER contributed nodes for Node-RED, the low-code development tool.
-- [IT Standards for NHS England](https://nhsengland.github.io/it-standards) - Some guidance on the use of technology in NHS England.
 
 ## Community Resources
 
@@ -264,6 +262,7 @@ A curated list of awesome things related to [docsify](https://docsify.js.org)
 - [docsify-plugin-page-history](https://github.com/simochee/docsify-plugin-page-history) - A plugin for per-by-page history.
 - [docsify-bilibili](https://github.com/denganliang/docsify-bilibili) - A docsify plugin for easy to show biliblili video in markdown.
 - [docsify-betterembed](https://github.com/FlippedCodes/docsify-betterembed) - A docsify.js plugin to embed selective areas from another markdown file.
+- [docsify-navbar-fixed](https://github.com/LIGMATV/docsify-navbar-fixed) - A new always on top customizable and pretty navigation bar for your docs.
 
 ## Themes