docs(Grove): Standardize technical term formatting in security section

Apply Markdown backticks to `WASM` and `WASMtime` within the security features list of the README.md to align with project documentation standards. This ensures visual distinction for technical terminology consistent with previous updates to the file.

This change maintains style consistency across all technical references in the Grove documentation.

Author: NikolaRHristov

README.md

@@ -277,7 +277,8 @@ async fn main() -> anyhow::Result<()> {
 
 Grove provides security through:
 
-1. **WASM Sandboxing**: Isolated execution environment via WASMtime
+- **`WASM` Sandboxing**: Isolated execution environment via `WASMtime`
+
 2. **Memory Limits**: Configurable memory constraints for extensions
 3. **Resource Controls**: CPU and resource throttling
 4. **Type Safety**: Rust's ownership system ensures memory safety