doc:net: Fix typo in Documentation/networking

Correct spelling typo in Documentation/networking

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/networking/l2tp.txt b/Documentation/networking/l2tp.txt
index e63fc1f..c74434d 100644
--- a/Documentation/networking/l2tp.txt
+++ b/Documentation/networking/l2tp.txt
@@ -197,7 +197,7 @@
 implemented to provide extra debug information to help diagnose
 problems.) Users should use the netlink API.
 
-/proc/net/pppol2tp is also provided for backwards compaibility with
+/proc/net/pppol2tp is also provided for backwards compatibility with
 the original pppol2tp driver. It lists information about L2TPv2
 tunnels and sessions only. Its use is discouraged.