Revert "Remove expansion pack references for initial launch"

This reverts commit ca3ff9274d.

README.md

@@ -76,6 +76,7 @@ During setup, you choose how your AI therapist communicates:
 | **Warm 4o-Style** | Like a good friend who asks insightful questions |
 | **Direct & Challenging** | Will push back, asks probing questions |
 
+Want more options? The [Expansion Pack](#expansion-pack) includes 3 additional styles.
 
 ### Therapeutic Approaches
 
@@ -83,6 +84,7 @@ Your AI therapist uses evidence-based approaches:
 
 - **CBT** — Identify and challenge unhelpful thought patterns
 
+Want more approaches? The [Expansion Pack](#expansion-pack) includes ACT, DBT Skills, Somatic Experiencing, and more.
 
 ### How Sessions Work
 
@@ -119,6 +121,26 @@ No special software needed to view your own notes.
 
 ---
 
+## Expansion Pack
+
+Want more communication styles and therapeutic approaches? **Inner Dialogue: Deeper** adds:
+
+**3 Additional Styles:**
+- Warm & Supportive (validation first, gentle challenges)
+- Coach (action-oriented, accountability)
+- Grounded & Real (down-to-earth, uses humor)
+
+**5 Additional Modalities:**
+- ACT (Acceptance and Commitment Therapy)
+- DBT Skills (emotional regulation, distress tolerance)
+- Lifespan Integration (body-based trauma work)
+- Psychodynamic (understanding patterns from the past)
+- Somatic Experiencing (nervous system regulation)
+
+**[Get Inner Dialogue: Deeper](https://gumroad.com/l/inner-dialogue-deeper)** — Pay what you want (including free).
+
+---
+
 ## Safety & Limitations
 
 **This tool is for self-reflection and emotional support. It is not a replacement for professional mental health care.**