tools/sddl/compiler/Syntax.md still documents comma-separated records (follow-up to #159)

[avionicharshit-byte]

#159 reported that the SDDL syntax reference shows record members comma-separated while the compiler only accepts newlines/semicolons. It was closed after the website docs were updated, but the in-repo file wasn't: tools/sddl/compiler/Syntax.md on current dev still says records are "a comma-separated list between curly braces", with this example:

Row = {
  Byte,
  Byte,
  UInt32LE[8],
}

The SDDL1 compiler rejects it:

$ printf 'Row = {\n  Byte,\n  UInt32LE[8],\n}\n: Row[2]\n' | build/tools/sddl/sddl_compiler
syntax error: Unexpected separator token ','

Newline-separated members compile fine, matching the shipped example examples/sddl/sao_silesia.oldv1.sddl.

(For readers landing here from a search: this is SDDL1 / --profile sddl. SDDL2 / --profile sddl2 is the comma-separated language — easy to conflate.)