add command line flags to readme

Author: publicarray

ProxyCache.java

@@ -182,7 +182,7 @@ public static void main(String args[]) {
             if(argument.equals("-e") || argument.equals("--expires")) {
                 // when validating the cache also check the expires header, this can reduce the number of requests out to the web.
                 expires = true;
-                System.out.println("Check expires header when checking the freshniss of an object in the cache.");
+                System.out.println("Check expires header when checking the freshness of an object in the cache.");
             }
         }
 

readme.md

@@ -28,6 +28,12 @@ java ProxyCache 5001
 
 Next change your browsers or system proxy settings and start browsing the web.
 
+### Commandline flags
+
+* -a, --secure
+    * Proxy HTTPS/TLS connections. (experimental as it can course 100% CPU usage)
+* -e --expires
+    * Check expires header when checking the freshness of an object in the cache.
 ## Generating JavaDocs
 
 ### With make