diff --git a/README.md b/README.md
index ffd1948d..8eabcc8f 100644
--- a/README.md
+++ b/README.md
@@ -59,13 +59,13 @@ They have their own README file as well.
 The documentation can be built offline from a git clone or source distribution.
 Install documentation builder dependencies with `pip install '.[doc]'`.
 
-Run the make command `make html` which will output the documentation,
-including the generated API reference, into a folder called `html`.
+Run `make html` from the terminal to generate PyDRex's documentation
+(available in the `html` directory), including the API reference.
 The homepage will be `html/index.html`.
 
 ## Contributing
 
-For a Linux development environment, clone the [source code](https://github.com/seismic-anisotropy/PyDRex)
+For a Linux or MacOS development environment, clone the [source code](https://github.com/seismic-anisotropy/PyDRex)
 and execute the Bash script `tools/venv_install.sh`.
 This will set up a local Python virtual environment with an [editable install](https://setuptools.pypa.io/en/latest/userguide/development_mode.html)
 of PyDRex that can be activated/deactivated by following the displayed prompts.
diff --git a/tests/README.md b/tests/README.md
index 4f22c54b..49a40b35 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -1,6 +1,6 @@
 # PyDRex tests
 
-Running the base test suite requires [pytest](https://docs.pytest.org), and up to ~16GB RAM.
+Running the base test suite requires [pytest](https://docs.pytest.org) and up to ~16GB RAM.
 By default, `make test` will attempt to write persistent logs and output to `./out/`.
 
 Alternatively, run `pytest` from the root of the source tree.