Fix typos in Documentation/: 'B'-'C'

This patch fixes typos in various Documentation txts. This patch addresses some
words starting with the letters 'B'-'C'.  There are also a few grammar fixes
thrown in for Randy. ;)

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/input/atarikbd.txt b/Documentation/input/atarikbd.txt
index c16a5df..c8f99a0 100644
--- a/Documentation/input/atarikbd.txt
+++ b/Documentation/input/atarikbd.txt
@@ -522,7 +522,7 @@
             0x20        ; memory access
             { data }    ; 6 data bytes starting at ADR
 
-This comand permits the host to read from the ikbd controller memory.
+This command permits the host to read from the ikbd controller memory.
 
 9.26 CONTROLLER EXECUTE