Changed various problems, mostly in wordage, including:
Changed "purists...that" to "purists...who".
Changed parenthetical explanation of "tags".
Changed "added" to "defined" since elements were not added.
Replaced awkward use of "related things".
Changed awkward non-possessive "<filename>'s" to
"<filename> elements".
Removed too-restrictive "If you are familiar with them,".
Reworded "I found the best way" from anonymous page.
Removed "that" that referred to nothing.
Changed "have got" to "have".
Changed "they'll" to FDP's "they will".
Changed too-informal "stuff" to "version".
Removed erroneous "too" in small rewording that shortened a long
sentence.
Removed unnecessary "You should".
Combined two paras on the same thing, changing "file" to "page".
Inserted apostrophe in "beginners".
Changed a quote char to an entity, twice.
Approved by: keramida