Add TurboTax Online import screenshots

Author: metalusmonk

docs/images/turbotax/01-crypto-entry.png

@@ -70,6 +70,50 @@ TurboTax will validate the file and ingest transactions.
 
 ---
 
+## Step-by-Step: TurboTax Online Import (with Screenshots)
+
+### 1. Navigate to Cryptocurrency Section
+
+Go to:
+- Federal → Wages & Income
+- Investments and Savings → Cryptocurrency
+
+![TurboTax crypto entry point](images/turbotax/01-crypto-entry.png)
+
+---
+
+### 2. Choose Upload Method
+
+Select:
+
+- **Upload it from my computer**
+
+![Upload method selection](images/turbotax/02-upload-method.png)
+
+---
+
+### 3. Configure Import (Critical)
+
+Set the following **exactly**:
+
+- Crypto service: **Other**
+- Name: any value (e.g. `crypto-pnl-tool`)
+- CSV Type: **Raw transaction activity**
+
+❌ Do NOT select Gain/Loss or 1099-B.
+
+![Raw transaction activity selection](images/turbotax/03-raw-activity-selection.png)
+
+---
+
+### 4. Upload CSV and Confirm
+
+Upload the generated CSV file.
+
+If successful, TurboTax will accept the file and process transactions.
+
+![Successful upload confirmation](images/turbotax/04-upload-success.png)
+
 ## Generating the TurboTax CSV
 
 ### Export without syncing exchanges