Preview and comment
Please use the Preview ("Show preview") button (near the "Save page" button) to check your work before saving. Every time you hit Save page, the database stores that version of the file. If everyone saved every file 5 times for every edit, we would soon have a database the size of the moon! Also, please make a note in the summary field, like "Added names" or "typos" or "+ links" (that one means "I added links"). Thanks!