Call it "Git User Manual" and remove reference to very old Git version
Use current "detached HEAD" message
Use current output for "git repack"
Use "git merge" instead of "git pull ."
Simplify "How to make a commit"
Fix typos and improve wording
Improve description in "How to merge"
Improve description in "Manipulating branches"; add some missing punctuation
Improve description in "Merge multiple trees"; remove unnecessary quoting
Remove unnecessary historical note
Remove obscure reference from "Examples"
Remove irrelevant reference from "Tying it all together"
"git prune" is safe now