0.3.3.post1: fix GitHub MathJax rendering across docs - #59

GitHub's MathJax configuration disallows \operatorname, leaves \!
(negative thin space) as a literal '!', and trips on a bare 'h^*'
superscript inside an aligned block. Together these cascaded into
equations K.4-K.9 of docs/KERNEL_ARCHITECTURE.md showing as raw text
and eq (3) of docs/LAZY_EXPERTS.md losing its multiplication sign.

Fixes (docs/, 10 files):
- \operatorname{X} -> \mathrm{X}; \operatorname*{X}_y ->
  \mathop{\mathrm{X}}\limits_y (preserves limit position).
- Bare h^* -> h^{\ast}.
- Drop \! everywhere in math (ATTENTION, CLUSTER_LOCALITY,
  LAZY_EXPERTS, LONG_CONTEXT, SPEC_DECODE, THEORY).
- LAZY_EXPERTS eq (3) rewritten as Q = max(1, 2d), d = \texttt{prefetch\_depth},
  and the RAM-budget expression as B * 2^20 / p_page, B = \texttt{ram\_budget\_mb},
  to avoid \mathrm{...\_...} MathJax ambiguity.

Version string unchanged at 0.3.3: docs are not shipped in the wheel
(MANIFEST.in and setuptools packages.find exclude them), so the PyPI
0.3.3 release remains valid; only the GitHub v0.3.3 tag needs to
point at this fix.

Matplotlib-mathtext strings in docs/assets/arch/make_arch.py and the
generated SVG XML comments are unaffected (different renderer).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>