[doc] Enhancement: Updating Optional Build Params
@@ -58,6 +58,8 @@ make
```
make LIBOS=[catnap|catnip|catpowder] # Build using a specific LibOS.
make DRIVER=[mlx4|mlx5] # Build using a specific driver.
+make LD_LIBRARY_PATH=/path/to/libs # Override path to shared libraries. Applicable to Catnap and Catcollar.
+make PKG_CONFIG_PATH=/path/to/pkgconfig # Override path to config files. Applicable to Catnap and Catcollar.
```
**6. Install Artifacts (Optional)**
