Add howto.

README.md

@@ -1,4 +1,4 @@
-###About
+### About
 This is a frontend for the collection of tools used by the zebra.
 
 <br>
@@ -10,6 +10,12 @@ This is a frontend for the collection of tools used by the zebra.
 
 <br>
 
+### How To
+```angular2html
+pip3 install pyqt5
+```
+
+
 ### To Do
 + Add a plot.
 + Add file selection.