docs: fix phrasing in _read_pyproject_toml docstring

Signed-off-by: aoright <102943475+aoright@users.noreply.github.com>

Author: aoright

src/fastapi_cli/config.py

@@ -13,7 +13,7 @@ class FastAPIConfig(BaseModel):
 
     @classmethod
     def _read_pyproject_toml(cls) -> dict[str, Any]:
-        """Read FastAPI configuration from pyproject.toml in current directory."""
+        """Read FastAPI configuration from pyproject.toml in the current directory."""
         pyproject_path = Path.cwd() / "pyproject.toml"
 
         if not pyproject_path.exists():