Error in description of exercises

[xiezht]

The description of the exercises is quite strange. It losts some information such as commands. Take ex.1 a example, its description shows as follows:

MONGOD
Exercise 1 of 9

Hey hey from . First, let's get MongoDB installed.
You can download MongoDB from .

We will also need to add it to your .

You do not have to create any file with a solution in this exercise.
Just run when you are ready with the installation.

I use a cloud IDE. But the problem didn't occur before.