diff --git a/installation_instructions/README.md b/installation_instructions/README.md
index 0d031bf953dae5f265c0a28b73310d5059554213..b528a8e320bf3f22f64f98145afd972772062984 100644
--- a/installation_instructions/README.md
+++ b/installation_instructions/README.md
@@ -1,3 +1,11 @@
 # Installation Instructions
 
-This directory contains instructions to install the software needed for the course.  There are three `.ipynb` Jupyter notebook files that need to be maintained.  After editing/changing these notebook files, export the notebook from Jupyter lab as a `.html` file and push all of those changes to this online repo and merge with the main branch.  After that inform the instructor who can pull and update the course web page with those html files.
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+This directory contains instructions to install the software needed for the course.  There are three `.ipynb` Jupyter notebook files that need to be maintained.
+
+Files to edit:
+
+* `index.ipynb`
+* `windows/installation_instructions.ipynb`
+* `macintosh/installation_instructions.ipynb`
+
+  After editing/changing these notebook files, export the notebook from Jupyter lab as a `.html` file and push all of those changes to this online repo and merge with the main branch.  After that inform the instructor who can pull and update the course web page with those html files.
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