add help about caching

Author: lanterndev

README.md

@@ -64,4 +64,5 @@ This will install `http-server` globally so that it may be run from the command
 
 `-h` or `--help` Print this list and exit.
 
-`-c` Set cache time (in seconds) for cache-control max-age header, e.g. -c10 for 10 seconds. To disable caching, use -c-1.
+`-c` Set cache time (in seconds) for cache-control max-age header, e.g. -c10 for 10 seconds
+(defaults to '3600'). To disable caching, use -c-1.

bin/http-server

@@ -20,8 +20,8 @@ if (argv.h || argv.help) {
     "  -e --ext           Default file extension if none supplied [none]",
     "  -s --silent        Suppress log messages from output",
     "  --cors             Enable CORS via the 'Access-Control-Allow-Origin' header",
-    "  -o                 Open browser window after starting the server",
-    "  -c                 Set cache time (in seconds). e.g. -c10 for 10 seconds.",
+    "  -o                 Open browser window after staring the server",
+    "  -c                 Cache time (max-age) in seconds [3600], e.g. -c10 for 10 seconds.",
     "                     To disable caching, use -c-1.",
     "",
     "  -S --ssl           Enable https.",