Fix some layout to RunCode sections

Author: amakarudze

en/django_installation/instructions.md

@@ -121,7 +121,7 @@ the packages in your environment
 >```
 > and a new `virtualenv` with the name `myvenv` or whatever name you chose should be created in your `djangogirls` folder.
 
-<!-- -->
+<!--endsec-->
 
 
 ## Working with virtualenv

en/django_start_project/README.md

@@ -254,6 +254,8 @@ https://name-of-your-glitch-project.glitch.me
 
 If you are using RunCode cloud platform, the URL will look something like this:
 `https://8000-soft-limit-18855079.eu-ws4.runcode.io/`. To view your own instance, the URL will be like:
+
+{% filename %}browser{% endfilename %}
 ```
 https://8000-the-name-of-your-runcode-instance.eu-ws4.runcode.io/
 ```