minor fix for typo and consistency (#1946)

Co-authored-by: jan iversen <[email protected]>

Author: julianbs789

doc/source/library/simulator/config.rst

@@ -239,7 +239,7 @@ Example "setup" configuration:
 **"co size"**, **"di size"**, **"hr size"**, **"ir size"**:
 
     Define the size of each block.
-    If using shared block the register list size will be the size of the biggest block (25 reegisters)
+    If using shared block the register list size will be the size of the biggest block (25 registers)
     If not using shared block the register list size will be the sum of the 4 block sizes (70 registers).
 
 **"shared blocks"**

pymodbus/server/simulator/http_server.py

@@ -98,17 +98,17 @@ class ModbusSimulatorServer:
 
     Example::
 
-        from pymodbus.server import StartAsyncSimulatorServer
+        from pymodbus.server import ModbusSimulatorServer
 
         async def run():
-            simulator = StartAsyncSimulatorServer(
+            simulator = ModbusSimulatorServer(
                 modbus_server="my server",
                 modbus_device="my device",
                 http_host="localhost",
                 http_port=8080)
-            await simulator.start()
+            await simulator.run_forever(only_start=True)
             ...
-            await simulator.close()
+            await simulator.stop()
     """
 
     def __init__(