Fix typo in backend name

docs/markdown/Using Pants/concepts/enabling-backends.md

@@ -38,7 +38,7 @@ Available backends
 | `pants.backend.experimental.python.lint.pyupgrade`        | Enables Pyupgrade, which upgrades to new Python syntax: <https://pypi.org/project/pyupgrade/>      | [Linters and formatters](doc:python-linters-and-formatters)       |
 | `pants.backend.experimental.python.packaging.pyoxidizer`  | Enables `pyoxidizer_binary` target.                                                                | [PyOxidizer](doc:pyoxidizer)                                      |
 | `pants.backend.google_cloud_function.python`              | Enables generating a Google Cloud Function from Python code.                                       | [Google Cloud Function](doc:google-cloud-function-python)         |
-| `pants.backend.plugin_devoplment`                         | Enables `pants_requirements` target.                                                               | [Plugins overview](doc:plugins-overview)                          |
+| `pants.backend.plugin_development`                         | Enables `pants_requirements` target.                                                               | [Plugins overview](doc:plugins-overview)                          |
 | `pants.backend.python`                                    | Core Python support.                                                                               | [Enabling Python support](doc:python-backend)                     |
 | `pants.backend.python.mixed_interpreter_constraints`      | Adds the `py-constraints` goal for insights on Python interpreter constraints.                     | [Interpreter compatibility](doc:python-interpreter-compatibility) |
 | `pants.backend.python.lint.bandit`                        | Enables Bandit, the Python security linter: <https://bandit.readthedocs.io/en/latest/>.            | [Linters and formatters](doc:python-linters-and-formatters)       |