Fix some typos from the documentation (#1383)

* Fix run typo

* Fix entrypoint typo

client/qiskit_serverless/core/job.py

@@ -414,7 +414,7 @@ class GatewayJobClient(BaseJobClient):
                 )
             else:
                 raise QiskitServerlessException(
-                    "Function must either have `entryoint` or `image` specified."
+                    "Function must either have `entrypoint` or `image` specified."
                 )
 
         return program_title

docs/getting_started/basic/01_running_program.ipynb

@@ -176,7 +176,7 @@
    "id": "135eda5f",
    "metadata": {},
    "source": [
-    "We can run any function by calling `fun` method on function object."
+    "We can run any function by calling `run` method on function object."
    ]
   },
   {