Fix typos in /Documentation : 'T''

This patch fixes typos in various Documentation txts. The patch addresses some
+words starting with the letter 'T'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/networking/proc_net_tcp.txt b/Documentation/networking/proc_net_tcp.txt
index 59cb915..5e21f7c 100644
--- a/Documentation/networking/proc_net_tcp.txt
+++ b/Documentation/networking/proc_net_tcp.txt
@@ -25,7 +25,7 @@
 
    1000        0 54165785 4 cd1e6040 25 4 27 3 -1
     |          |    |     |    |     |  | |  | |--> slow start size threshold, 
-    |          |    |     |    |     |  | |  |      or -1 if the treshold
+    |          |    |     |    |     |  | |  |      or -1 if the threshold
     |          |    |     |    |     |  | |  |      is >= 0xFFFF
     |          |    |     |    |     |  | |  |----> sending congestion window
     |          |    |     |    |     |  | |-------> (ack.quick<<1)|ack.pingpong