Updated README to reference encryption. See HLS-20
Updated README to reference encryption. See HLS-20

file:a/README.md -> file:b/README.md
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@
 
 	-o [directory]	Output directory (default: ./output)
 	-c [count]	Number of segments to include in playlist (live streams only) - 0 is no limit
+	-e      	Encrypt the HLS segments (a key will be generated automatically)
 	-b [bitrates]	Output video Bitrates in kb/s (comma seperated list for adaptive streams)
 	-p [name]	Playlist filename prefix
 	-t [name]	Segment filename prefix