fix: Update README.md version to v0.7.0

Corrects the version string in README.md that was missed in the previous commit.

Author: am-kantox

README.md

@@ -2,8 +2,8 @@
 
 A strongly-typed, dependently-typed programming language for the BEAM virtual machine with built-in finite state machines, **complete import system**, and **comprehensive standard library**.
 
-🚀 **Last Updated: November 23, 2025**  
-📦 **Current Version: v0.6.0**
+🚀 **Last Updated: November 26, 2025**  
+📦 **Current Version: v0.7.0**
 
 ✅ **Working import system** with full module resolution  
 ✅ **Standard library** with verified runtime execution (12 modules)