docs: add note about multi-file Go component compilation support

- Multi-file Go packages now compile correctly in TinyGo WebAssembly components
- Fixed go_wasm_component rule to pass entire module directory to TinyGo
- Resolves undefined function errors in multi-file Go components

Author: avrabe

README.md

@@ -2,6 +2,8 @@
 
 Universal file operations for Bazel build systems via WebAssembly components with enhanced security and cross-platform support.
 
+<!-- Multi-file Go component compilation now supported -->
+
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