Add information about ctaTracking attrs to the PQL Guide

doc/development/product_qualified_lead_guide/index.md

@@ -35,6 +35,7 @@ The hand-raise lead form accepts the following parameters via provide or inject.
 
 ```javascript
     provide: {
+      small,
       user: {
         namespaceId,
         userName,
@@ -43,9 +44,18 @@ The hand-raise lead form accepts the following parameters via provide or inject.
         companyName,
         glmContent,
       },
+      ctaTracking: {
+        action,
+        label,
+        property,
+        value,
+        experiment,
+      },
     },
 ```
 
+The `ctaTracking` parameters follow [the `data-track` attributes](../snowplow/implementation.md#data-track-attributes) for implementing Snowplow tracking. The provided tracking attributes are attached to the button inside the `HandRaiseLeadButton` component, which triggers the hand-raise lead modal when selected.
+
 ### Monitor the lead location
 
 When embedding a new hand raise form, use a unique `glmContent` or `glm_content` field that is different to any existing values.