The Jobs Developer Guide is ambiguous when it comes to register_jobs()

[dylanbob]

Environment

• Nautobot version (Docker tag too if applicable): documentation of the v2.0.4
• Python version: n/a
• Database platform, version: n/a
• Middleware(s): n/a

Steps to Reproduce

1. Head to the jobs developer guide
2. Discover how custom jobs are developed and what changed since earlier nautobot versions
3. Be mislead by the documentation and fail to develop a job 👎

Expected Behavior

The documentation should :

1. clearly state how, when and where register_jobs() must be used
2. match the example with the explanatory text : either both jobs.py and jobs/ options should be explained and shown with an example, or only one of both (in that case, the jobs/ seems better)
3. be written from the 2.X standpoint, but a more general issue, #4760, already covers that

Observed Behavior

In the documentation :

• the only occurence of register_jobs() is inside a "Changed in version 2.0.0" block, and it mixes in developing jobs and developing plugins providing jobs
• the example of register_jobs() does not match the documentation text : while the example is for jobs.py, the text is for jobs/, which changes where the register_jobs() should be put

Additional information

register_jobs() is now mandatory, therefore its documentation should be crystal clear.

See my corresponding message in the Slack.

[dylanbob]

This issue is also somewhat related to #2727.