I suggest taking a look at your html sanitization settings make sure html isn't allowed in markdown settings.
Next step would be to move the other 2 topics from that category and check if you still see broken markup.
Why is my admin panel showing up like this.
It is showing section-settings and then section-general etc.
It should only be showing settings and then general
I have attached pictures.
Please help me fix it.
Looks like assets aren't built. Try
./nodeb stop ./nodebb build ./nodebb start