Fixed code formatting.

README.md

@@ -9,5 +9,7 @@ A preprint of the paper is available on [ArXiv](https://arxiv.org/abs/2206.01454
 This repository is still under construction, and updated code, as well as instructions for reproducing the results in that paper, will be added soon.
 
 To reproduce Figure 5, run:
+
     python trajectory_plot.py
+
 This should run nearly instantaneously.