update makingakit.rst

- remove setup.py edits (we don't create setup.py)
- add line to activate rmsfkit environment

docs/source/makingakit.rst

@@ -260,22 +260,6 @@ file. Under the ``[project.optional-dependencies]`` table, ensure that
 	    "MDAnalysisTests>=2.0.0",
 	]
 
-These tests also need to be reflected in the ``extra_requires`` dictionary in ``setup.py``:
-
-.. code-block:: python
-
-	extras_require={
-	        "test": [
-	            "pytest>=6.0",
-	            "pytest-xdist>=2.5",
-	            "pytest-cov>=3.0",
-	            "MDAnalysisTests>=2.0.0"  # add this
-	        ],
-	        "doc": [
-	            "sphinx",
-	            "sphinx_rtd_theme",
-	        ]
-	}
 
 Confirm that the code and tests work
 ************************************
@@ -288,6 +272,7 @@ environment using ``conda`` or ``mamba`` (recommended).
 
 	$ mamba create -n rmsfkit
 	$ mamba env update --name rmsfkit --file devtools/conda-envs/test_env.yaml
+        $ mamba activate rmsfkit
 	$ pip install -e .
 
 This installs the package as well as the testing environment. We can run tests locally using:
@@ -696,4 +681,4 @@ In the event that a kit no longer passes its tests, an issue in MDAnalysis/MDAKi
 While the registry developers will be happy to help where possible, ultimately, the maintainers of the MDAKit are responsible for resolving such issues and ensuring that the tests pass.
 The issue will automatically close after the next CI run if the tests pass again.
 
-.. _read the docs: https://readthedocs.org
+.. _read the docs: https://readthedocs.org