Content audit: Make sure task topics give specific/scenario-related, not generic instructions, and end properly

In testing, one of the comments was:

There is frequently a disconnect between generic information and information specific to the Farmers Market scenario. I think it is important for the task topics that have specific steps and screenshots in them all relate to the scenario with very specific instructions. Phrases like "Find the menu you wish to edit" are not as helpful as something like "Choose the Main navigation menu and click Edit Menu".

So, we need to go through the guide and identify topics that need updates for this, and make sure issues have been created.

Issues that I am already aware of, that address this for a few topics:
- language-content - #2711103: Content edit: language-content-config.txt
- config-uninstall - #2710969: Content edit: Fix up the Basic Configuration chapter

A second, somewhat related comment from testing:

Many of the topics are missing a "Go and observe the results of what you did" step. It helps reinforce the learning if we get a chance to do this.

So, we need to audit the task topics for this as well.

Probably this audit should be postponed until the rest of the testing issues have been created (some of them may address other topics in this regard). As of when this issue is being created, testing issues have been created through the Multilingual Configuration chapter (chapter 5).