config doc tuning

Author: pekkaklarck

README.rst

@@ -83,8 +83,8 @@ The remote server accepts following configuration parameters:
     ==============  ================  ========================================
     ``library``                       Test library instance or module to host. Mandatory argument.
     ``host``         ``'127.0.0.1'``  Address to listen. Use ``'0.0.0.0'`` to listen to all available interfaces.
-    ``port``         ``8270``         Port to listen. Use ``0`` to select a free port automatically.
-    ``port_file``    ``None``         File to write port that is used. ``None`` means file is not written.
+    ``port``         ``8270``         Port to listen. Use ``0`` to select a free port automatically. Can be given as an integer or as a string.
+    ``port_file``    ``None``         File to write port that is used. ``None`` means no such file is written.
     ``allow_stop``   ``True``         Allow/disallow stopping the server using ``Stop Remote Server`` keyword.
     ==============  ================  ========================================
 

src/robotremoteserver.py

@@ -50,9 +50,10 @@ def __init__(self, library, host='127.0.0.1', port=8270, port_file=None,
         :param host:        Address to listen. Use ``'0.0.0.0'`` to listen
                             to all available interfaces.
         :param port:        Port to listen. Use ``0`` to select a free port
-                            automatically.
+                            automatically. Can be given as an integer or as
+                            a string.
         :param port_file:   File to write port that is used. ``None`` means
-                            file is not written.
+                            no such file is written.
         :param allow_stop:  Allow/disallow stopping the server using
                             ``Stop Remote Server`` keyword.
         """