doc update

Author: azkrishpy

awscrt/aio/http.py

@@ -168,7 +168,7 @@ async def new(cls,
                 Default is False.
 
             initial_window_size (Optional[int]): Initial window size for flow control.
-                If None, uses default value.
+                Required if manual_window_management is True, ignored otherwise.
 
             read_buffer_capacity (Optional[int]): Capacity in bytes of the HTTP/1.1 connection's
                 read buffer. The buffer grows when the flow-control window of the incoming stream
@@ -253,7 +253,7 @@ async def new(cls,
                 Default is False.
 
             initial_window_size (Optional[int]): Initial window size for flow control.
-                If None, uses default value.
+                Required if manual_window_management is True, ignored otherwise.
 
             conn_manual_window_management (bool): If True, enables manual connection-level flow control
                 for the entire HTTP/2 connection. When enabled, the connection's flow-control window

awscrt/http.py

@@ -374,7 +374,7 @@ def new(cls,
                 Default is False.
 
             initial_window_size (Optional[int]): Initial window size for flow control.
-                If None, uses default value.
+                Required if manual_window_management is True, ignored otherwise.
 
             conn_manual_window_management (bool): If True, enables manual connection-level flow control
                 for the entire HTTP/2 connection. When enabled, the connection's flow-control window