Add experiment ideas sections to all CRO skills
Adds curated A/B test experiments from SaaS CRO playbook to:
- page-cro: homepage, pricing, demo, resource page experiments
- signup-flow-cro: form design, copy, trial, post-submit experiments
- onboarding-cro: flow simplification, guided experience, personalization
- form-cro: structure, copy, mobile, type-specific experiments
- popup-cro: placement, triggers, messaging, personalization
- paywall-upgrade-cro: triggers, design, pricing, trials, personalization
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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