documentation: convert the Documentation directory to UTF-8

Convert files within the Documentation directory to UTF-8.

Adrian Bunk:
small additional fixes

Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/isdn/README b/Documentation/isdn/README
index 7615952..6783437 100644
--- a/Documentation/isdn/README
+++ b/Documentation/isdn/README
@@ -402,7 +402,7 @@
      the script tools/tcltk/isdnmon. You can add actions for line-status
      changes. See the comments at the beginning of the script for how to
      do that. There are other tty-based tools in the tools-subdirectory
-     contributed by Michael Knigge (imon), Volker Götz (imontty) and
+     contributed by Michael Knigge (imon), Volker Götz (imontty) and
      Andreas Kool (isdnmon).
 
    l) For initial testing, you can set the verbose-level to 2 (default: 0).