Update swarm.ipynb (#4958)

Small typo

Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>

python/packages/autogen-core/docs/src/user-guide/agentchat-user-guide/swarm.ipynb

@@ -28,7 +28,7 @@
                 "where agents take turn to generate a response. \n",
                 "Similar to {py:class}`~autogen_agentchat.teams.SelectorGroupChat`\n",
                 "and {py:class}`~autogen_agentchat.teams.RoundRobinGroupChat`, participant agents\n",
-                "broadcast their responses so all agents share the same mesasge context.\n",
+                "broadcast their responses so all agents share the same message context.\n",
                 "\n",
                 "Different from the other two group chat teams, at each turn,\n",
                 "**the speaker agent is selected based on the most recent\n",