[WIP] Fix feedback on Personalization guide PR

[Copilot]

• Remove agency-focused language from line 25 in implement-psn/README.md
• Remove agency-focused language from line 86 in implement-psn/README.md
• Remove agency-focused language from line 87 in implement-psn/README.md
• Update title in SUMMARY.md line 30 to "Implement Personalized Campaigns"

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[timowestnosto]

@copilot try again

[Copilot]

@copilot try again

Done. I've removed the agency-focused language from the documentation:

• Line 25: Changed "Your client will guide you" to "Placements need to be set up"
• Line 86: Changed "If your client is on Shopify" to "If you are on Shopify"
• Line 87: Removed "(mostly applicable for clients not using the dynamic product cards)"
• SUMMARY.md line 30: Updated title to "Implement Personalized Campaigns"

Commit: 91325ac