Documentation: remove duplicated words

Remove many duplicated words under Documentation/ and do other small
cleanups.

Examples:
        "and and" --> "and"
        "in in" --> "in"
        "the the" --> "the"
        "the the" --> "to the"
        ...

Signed-off-by: Paolo Ornati <ornati@fastwebnet.it>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/isdn/README.hysdn b/Documentation/isdn/README.hysdn
index 56cc59d..eeca11f 100644
--- a/Documentation/isdn/README.hysdn
+++ b/Documentation/isdn/README.hysdn
@@ -1,6 +1,6 @@
 $Id: README.hysdn,v 1.3.6.1 2001/02/10 14:41:19 kai Exp $
 The hysdn driver has been written by
-by Werner Cornelius (werner@isdn4linux.de or werner@titro.de) 
+Werner Cornelius (werner@isdn4linux.de or werner@titro.de)
 for Hypercope GmbH Aachen Germany. Hypercope agreed to publish this driver
 under the GNU General Public License.