fix: Fix mintlify compilation error

Author: wesrobin

toml-reference/toml-reference.mdx

@@ -58,7 +58,7 @@ use_uv = true
 Check your build logs for these indicators:
 
 - **UV_PIP_INSTALL_STARTED** - UV is successfully being used
-- **PIP_INSTALL_STARTED** - Standard pip installation (when `use_uv=false`)
+- **PIP_INSTALL_STARTED** - Standard pip installation (when `use_uv` is `false`)
 
 <Warning>
   While UV is compatible with most packages, some edge cases may cause build