added a readme file

README.md

@@ -0,0 +1,32 @@
+# Net\_DNS2 - Native PHP5 DNS Resolver and Updater #
+
+### The main features for this package include: ###
+
+  * Increased performance; most requests are 2-10x faster than Net\_DNS
+  * Near drop-in replacement for Net\_DNS
+  * Uses PHP5 style classes and exceptions
+  * Support for IPv4 and IPv6, TCP and UDP sockets.
+  * Includes a separate, more intuitive "Updater" class for handling dynamic update
+  * Support zone signing using TSIG and SIG(0) for updates and zone transfers
+  * Includes a local cache using shared memory or flat file to improve performance
+  * includes many more RR's, including DNSSEC RR's.
+
+
+## Installing Net\_DNS2 ##
+
+Net\_DNS2 is available via the download section above as a PEAR library, or get it directly from the PEAR site:
+
+http://pear.php.net/package/Net_DNS2
+
+Or you can use the command line PEAR installer:
+
+```
+
+pear install Net_DNS2
+
+```
+
+
+## Using Net\_DNS2 ##
+
+See the Net\_DNS2 Website for more details - http://netdns2.com/