README formatting (#9)

Author: matth-love

README.md

@@ -31,15 +31,15 @@ gfortran -o htdp htdp.f
 
 # 3. Move it to your PATH
 sudo mv htdp /usr/local/bin/
-Install Transformez
+```
+
+### Install Transformez
 Once HTDP is accessible in your terminal, install the python package:
 
 ```bash
 pip install transformez
 ```
 
-*Requires [htdp](https://geodesy.noaa.gov/TOOLS/Htdp/Htdp.shtml) to be in your system PATH for frame transformations.*
-
 ## Usage
 
 **Generate a vertical shift grid for anywhere on Earth.**