Update README.md

README.md

@@ -4,17 +4,17 @@ Mini-workshop/tutorial on design of microfabrication layout patterning masks.
 
 ## Required software
 
--  Layout editing software: [KLayout](https://www.klayout.de) preffered. [LayoutEditor](https://layouteditor.com) if you can afford the paid version
+-  Layout editing software: [KLayout](https://www.klayout.de) preffered. [LayoutEditor](https://layouteditor.com) if you can afford the paid version.
 
 ## Optional software (strongly encouraged)
 -  Text editor with syntax highlithing and whatever goodies you need for programming (e.g. [Atom](https://atom.io), Emacs, Vim,...)
 -  Python 3 + Pip + Packages
   -  Windows: Follow [these](https://phoenixnap.com/kb/how-to-install-python-3-windows) instructions up to step 5.
   -  Mac OS/Linux: Usually comes pre-installed only with Python 2. Use package manager of your liking (e.g. [Homebrew](https://brew.sh) on Mac, [APT-GET](https://phoenixnap.com/kb/how-to-use-apt-get-commands) on Linux) to install Python 3.
-  - gdspy
-    - 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
+    - gdspy
+        - 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