diff --git a/README.md b/README.md
index 800d07565f84d5ac0f7182aedf861de52b0b8338..3753626c76623577c07ffccf5df14e4872081e5c 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,6 @@ Mini-workshop/tutorial on design of microfabrication layout patterning masks.
         - Documentation [here](https://gdspy.readthedocs.io/en/stable/gettingstarted.html)
         - Install using Pip: `python3 -m pip install gdspy` in command line/terminal
     - tkinter
-        - Optional, used for real-time-ish visualization of patterns.
-        - Documentation [here](https://docs.python.org/3/library/tkinter.html)
-        - Install using Pip: `python3 -m pip install tk` in command line/terminal
+      - Optional, used for real-time-ish visualization of patterns.
+      - Documentation [here](https://docs.python.org/3/library/tkinter.html)
+      - Install using Pip: `python3 -m pip install tk` in command line/terminal