We contradict our own advice about forgetting about ssh keys

[maneesha]

What is the problem?

In the section about keeping ssh keys secure, first we say that you can set it and forget it, but immediately after we have a callout that says you shouldn't forget about your ssh keys because they keep your account secure.

We should clarify this language to make it less confusing.

Location of problem (optional)

https://swcarpentry.github.io/git-novice/07-github.html#keeping-your-keys-secure