Fix Typos in Schema Docs

[ModernMAK]

Notable examples from skimming the first release

• /sga/v2/magic-version
  • ARCHIVE_ is a hyperlink?
• sga/v2/header
  • TOC Size has a broken link :doc:toc.rst
  • Data block size has missing punctuation
  • Clarify that 'Archive Name' matches the SGA's file name in official files
  • Maybe use a code block for the eigen values?
• sga/v2/toc
  • File Offset Definition Offset should be File Definition Offset
  • Footnotes appear to be broken for root folder definition
  • Root Folder ~ 'which servers as' should be 'which serves as'
  • I added headings for Folder Definition and apparently forgot to describe them
  • File definition lacks a description for Name Offset
  • Data offset also has a broken sphinx link ':doc:data.rst'
• sga/v2/data
  • File Metadata has no description for File Name
  • Clarify that File Data Hash is calculated from the File Data stored; either by explicitly mentioning the Compression Flag

In general, also avoid using acronyms like TOC, clarity over brevity and all that.

[ModernMAK]

For future reference; since i dont want to make another issue for it right now.

Perhaps also a brief writeup/tutorial on how to assemble/dissassemble the file tree

And add information regarding .arciv files in Dow1

[ModernMAK]

CannibalToast's PR mentions this

# Read header (SGA V2 header is 180 bytes total, TOC starts at 180)
# The actual offsets are 12 bytes later than documented:
# toc_size at offset 172, data_pos at offset 176

Pretty sure he was using this as a reference; as the old relic-game-tool wiki includes the Magic & Version in the Header schema

This doesn't include the Magic and the version in the Header page, because the Header's layout changes between versions, whereas magic and version do not.

Solutions

To avoid further confusion; I should explicitly state that each Schema's 'start' being byte 0 is RELATIVE or ABSOLUTE

I could also include Magic and Version in the header section, and explicitly state that it's the same fields as before.