Update reference/constraints/Cidr.rst

Co-authored-by: Oskar Stark <oskarstark@googlemail.com>

Author: Ninos

reference/constraints/Cidr.rst

@@ -128,7 +128,7 @@ of :ref:`IP version ranges <reference-constraint-ip-version>`.
 
 .. note::
 
-    Be aware IP range (``*_private``, ``*_reserved``) is only validating against IP, but not the whole
+    IP range (``*_private``, ``*_reserved``) is only validating against IP, but not the whole
     netmask. You need to set the ``{{ min }}`` value for the netmask to harden the validation a bit.
     For example, ``9.0.0.0/6`` results to be ``*_public``, but also uses ``10.0.0.0/8`` range (``*_private``).