docs: update warning in README to advise against production use

Author: Arnaud Riess

CONTRIBUTING.md

@@ -289,12 +289,6 @@ Use the [feature request template](.github/ISSUE_TEMPLATE/feature_request.md):
 - Suggest a possible implementation (optional)
 - Reference relevant SPECIFICATION.md sections if applicable
 
-### Security Issues
-
-**Do NOT open public issues for security vulnerabilities.**
-
-See [SECURITY.md](SECURITY.md) for responsible disclosure instructions.
-
 ## Development Guidelines
 
 ### Error Handling

README.md

@@ -1,6 +1,6 @@
 # herkos
 
-> ⚠️ **This project is work in progress! Not all wasm features nor corner cases were tested!**
+> ⚠️ **This project is work in progress! Not all wasm features nor corner cases were tested! Do not use in production!**
 
 A compilation pipeline that transpiles WebAssembly modules into memory-safe Rust code with compile-time isolation guarantees (memory+capabilities), replacing runtime hardware-based memory protection (MMU/MPU) with type-system-enforced safety.