Fix trailing white space

docs/examples/howto_reproduce_the_blackjax_image.md

@@ -18,7 +18,7 @@ The front page image of the repository is a sampled version of the following ima
 
 ![front_page_image](./data/blackjax.png)
 
-Here we show how we can sample from the uniform distribution corresponding to black pixels in the image.  
+Here we show how we can sample from the uniform distribution corresponding to black pixels in the image.
 
 
 ## Make the image into a numpy array
@@ -195,4 +195,4 @@ ani = animation.FuncAnimation(fig, animate, repeat=True,
 # ani.save('scatter.gif', writer=writer)
 ```
 
-![front_page_gif](./scatter.gif)
+![front_page_gif](./scatter.gif)