Fix explainer-count drift recurrence after PR #565

ROADMAP.md's "Current traction" table still said 60 explainers
(contradicting its own Phase 1 status line, already correctly saying
61) and llms.txt was missing the reject-option-classification entry,
both because PR #565 added the 61st explainer after PR #562 fixed
this same drift.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: yakew7

ROADMAP.md

@@ -27,7 +27,7 @@ Fair Code is an open-source responsible AI platform explaining algorithmic bias,
 
 | Stars | Contributors | Forks | Watching | Social Reach | Countries | Audits | Explainers | CI |
 |:-:|:-:|:-:|:-:|:-:|:-:|:-:|:-:|:-:|
-| 46 | 29 | 33 | 8 | 30K+ | 20 | 7 | 60 | ✅ every push/PR |
+| 46 | 29 | 33 | 8 | 30K+ | 20 | 7 | 61 | ✅ every push/PR |
 
 > The earlier paper freeze has lifted - the real paper, with fresh results, is now planned for next
 > year. `paper/results-frozen/` (tag `v1.0-paper`, commit `bbef2ba`) is kept as a reference snapshot.

llms.txt

@@ -84,3 +84,4 @@ Full text of every explainer in one file (for AI answer engines): https://www.th
 - [Conditional Demographic Parity](https://www.thefaircode.xyz/explainers/conditional-demographic-parity.html)
 - [Subgroup Fairness](https://www.thefaircode.xyz/explainers/subgroup-fairness.html)
 - [Differential Privacy](https://www.thefaircode.xyz/explainers/differential-privacy.html)
+- [Reject Option Classification](https://www.thefaircode.xyz/explainers/reject-option-classification.html)