Update examples

examples/history.py

@@ -0,0 +1,10 @@
+"""This example shows how to get the full message history of a chat, starting from the latest message"""
+
+from pyrogram import Client
+
+app = Client("my_account")
+target = "me"  # "me" refers to your own chat (Saved Messages)
+
+with app:
+    for message in app.iter_history(target):
+        print(message.text)