docs: clean up blank lines in README.md

Removed extra blank lines in the README file.

Author: haithium

README.md

@@ -25,8 +25,6 @@ Get started with the
 - **Multiple Lua Versions**: Compatible with LuaJIT, Lua 5.1, 5.2, 5.3, 5.4, and
   5.5.
 
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-
 ## 📦 Installation
 
 Install the library via LuaRocks: