Fix some typos in Documentation/: 'A'

This patch fixes typos in various Documentation txts.
This patch addresses some words starting with the letter 'A'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt
index 18d385c..c2f859f 100644
--- a/Documentation/networking/pktgen.txt
+++ b/Documentation/networking/pktgen.txt
@@ -7,7 +7,7 @@
 
 Enable CONFIG_NET_PKTGEN to compile and build pktgen.o either in kernel
 or as module. Module is preferred. insmod pktgen if needed. Once running
-pktgen creates a thread on each CPU where each thread has affinty it's CPU.
+pktgen creates a thread on each CPU where each thread has affinity to its CPU.
 Monitoring and controlling is done via /proc. Easiest to select a suitable 
 a sample script and configure.
 
@@ -32,7 +32,7 @@
 Stopped: eth1 
 Result: OK: max_before_softirq=10000
 
-Most important the devices assigend to thread. Note! A device can only belong 
+Most important the devices assigned to thread. Note! A device can only belong 
 to one thread.