Update README.md

README.md

@@ -21,10 +21,25 @@ Then you need to check if ``libssl1.0-dev`` had been installed properly. If you
 
 ## Usage
 
-		./httpdirfs -f $URL $YOUR_MOUNT_POINT
+	./httpdirfs -f $URL $YOUR_MOUNT_POINT
 
 An example URL would be [Debian CD Image Server](https://cdimage.debian.org/debian-cd/). The ``-f`` flag keeps the program in the foreground, which is useful for monitoring which URL the filesystem is visiting. 
 
+Other useful options:
+
+        -u   --user            HTTP authentication username
+        -p   --password        HTTP authentication password
+        -P   --proxy           Proxy for libcurl, for more details refer to
+				https://curl.haxx.se/libcurl/c/CURLOPT_PROXY.html
+
+## Configuration file support
+There is now rudimentary config file support. The configuration file that the program will read is ``${HOME}/.httpdirfs/config``. You will have to create the sub-directory and the configuration file yourself. In the configuration file, please supply one option per line. For example: 
+
+	$ cat ${HOME}/.httpdirfs/config
+	--username test
+	--password test
+	-f
+
 ## SSL Support
 
 If you run the program in the foreground, when it starts up, it will output the SSL engine version string. Please verify that your libcurl is linked against OpenSSL, as the pthread mutex functions are designed for OpenSSL.