Remove incorrect information about respecting lock files.

Author: lrnq

README.md

@@ -41,5 +41,5 @@ dependencies are not required when the objective is to simply build either a sou
 project.
 
 In order to improve the above situation, `poetry-core` was created. Shared functionality pertaining to PEP 517 build
-backends, including reading lock file, `pyproject.toml` and building wheel/sdist, were implemented in this package. This
+backends, `pyproject.toml` and building wheel/sdist, were implemented in this package. This
 makes PEP 517 builds extremely fast for Poetry managed packages.