wcap: fix a typo in README

Signed-off-by: Abdur Rehman <arehmanq199@gmail.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
diff --git a/wcap/README b/wcap/README
index 0994a1b..0c0d0f0 100644
--- a/wcap/README
+++ b/wcap/README
@@ -50,7 +50,7 @@
 WCAP File format
 
 The file format has a small header and then just consists of the
-indivial frames.  The header is
+individual frames.  The header is
 
 	uint32_t	magic
 	uint32_t	format