Documentation: Fix a few i.e./e.g. mix-ups

Documentation: Fix a few i.e./e.g. mix-ups

A git bundle can be transported by several means (such as e-mail), not
only by snekaernet, so use e.g. instead of i.e.

The mix-up in git-bundle.txt is obvious.

Signed-off-by: Michael J Gruber <redacted>
Signed-off-by: Junio C Hamano <redacted>