Generalize pokes; drop citations from OG card

- Rewrite pokes to name the sin itself, not our sample's exact numbers
  (a visitor didn't "start at 90" — they mis-set the baseline)
- Remove the "cited:" line from the OG card; citations stay on the page

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XPEvmMbac2fCvKXpQcovj8

src/content/sins/dual-axis-deception.md

@@ -1,7 +1,7 @@
 ---
 title: "The Dual-Axis Deception"
 summary: "Two unrelated series on two independent axes, engineered to look correlated."
-poke: "Two y-axes, tuned until the lines kiss. Congratulations — you can now make anything 'cause' anything."
+poke: "Two y-axes, scaled until the lines overlap — and suddenly anything 'causes' anything."
 category: "False Relationships"
 severity: 5
 tags: ["dual axis", "correlation", "line chart"]

src/content/sins/pie-chart-overload.md

@@ -1,7 +1,7 @@
 ---
 title: "Pie Chart Overload"
 summary: "Eight near-identical slices no human eye can rank. A bar chart was right there."
-poke: "Eight slices, three of them the same size. Nobody can read this. A bar chart could."
+poke: "More slices than anyone can rank by eye. A bar chart was right there."
 category: "Chart-Type Abuse"
 severity: 3
 tags: ["pie chart", "part-to-whole", "comparison"]

src/content/sins/truncated-y-axis.md

@@ -1,7 +1,7 @@
 ---
 title: "The Truncated Y-Axis"
 summary: "Chopping the baseline off a bar chart to make small differences look enormous."
-poke: "You started the y-axis at 90. That's not a bar chart — it's a magic trick."
+poke: "Your bars don't start at zero. That's not a bar chart — it's a magic trick."
 category: "Misleading Scales"
 severity: 4
 tags: ["bar chart", "axis", "exaggeration"]