Add OriginCoderPulse/synapse.nvim (#2010)

Add synapse.nvim plugin to README

Author: OriginCoderPulse

README.md

@@ -108,6 +108,7 @@
 - [wsdjeg/nvim-plug](https://github.com/wsdjeg/nvim-plug) - Asynchronous Neovim plugin manager written in Lua.
 - [alyxshang/nuwa.nvim](https://github.com/alyxshang/nuwa.nvim) - A light Neovim package manager.
 - [piersolenski/plugin-addict.nvim](https://github.com/piersolenski/plugin-addict.nvim) - A stupidly simple way to quickly install plugins.
+- [synapse.nvim](https://github.com/OriginCoderPulse/synapse.nvim) - A modern, lightweight plugin manager with beautiful UI, intelligent dependency management, tag/branch support, and post-install command execution.
 
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