docs: update README examples

Author: bardonadam

README.md

@@ -38,8 +38,8 @@ activitysmith = ActivitySmith(
 ```python
 response = activitysmith.notifications.send(
     {
-        "title": "Build Failed",
-        "message": "CI pipeline failed on main branch",
+        "title": "New subscription 💸",
+        "message": "Customer upgraded to Pro plan",
         "channels": ["devs", "ops"],  # Optional
     }
 )
@@ -54,9 +54,9 @@ print(response.devices_notified)
 start = activitysmith.live_activities.start(
     {
         "content_state": {
-            "title": "ActivitySmith API Deployment",
-            "subtitle": "start",
-            "number_of_steps": 4,
+            "title": "Nightly database backup",
+            "subtitle": "create snapshot",
+            "number_of_steps": 3,
             "current_step": 1,
             "type": "segmented_progress",
             "color": "yellow",
@@ -75,9 +75,9 @@ update = activitysmith.live_activities.update(
     {
         "activity_id": activity_id,
         "content_state": {
-            "title": "ActivitySmith API Deployment",
-            "subtitle": "npm i & pm2",
-            "current_step": 3,
+            "title": "Nightly database backup",
+            "subtitle": "upload archive",
+            "current_step": 2,
         }
     }
 )
@@ -92,10 +92,10 @@ end = activitysmith.live_activities.end(
     {
         "activity_id": activity_id,
         "content_state": {
-            "title": "ActivitySmith API Deployment",
-            "subtitle": "done",
-            "current_step": 4,
-            "auto_dismiss_minutes": 3,
+            "title": "Nightly database backup",
+            "subtitle": "verify restore",
+            "current_step": 3,
+            "auto_dismiss_minutes": 2,
         }
     }
 )
@@ -109,7 +109,7 @@ print(end.success)
 try:
     activitysmith.notifications.send(
         {
-            "title": "Build Failed",
+            "title": "New subscription 💸",
         }
     )
 except Exception as err: