Update README.md

Author: bitpeach

README.md

@@ -18,4 +18,21 @@
 ![](https://github.com/bitpeach/Protocol-Informatics/blob/master/PI%20paper%20figure.png)
 
 # What is code of PI
-* PI code was writted by Python 2.x. In the old version, PI.tgz imported the Numerical Function which was outdated. So, the author has produced the PI-0.02 beta version which has conquered the Numertical wanrings. 
+* PI code was writted by Python 2.x. In the old version of `PI-0.01.tgz`, PI.tgz imported the Numerical function which was outdated. So, the author has produced the `PI-0.02beta.tgz` version which has conquered the Numertical warnings by using the new function of NumPy. 
+
+* In the python environment, PI code complements the job of comparing two sequences of frames or packets to give two new sequences with the symbol of gap as the follow. The example can illustrate that the sequence alignment algorithm can pick two different protocol sequences for analyzing the common and diversity fields of protocol.
+
+**Input Two Network Packets**</br>
+`http://github.com/TomSmith/Hello-World`</br>
+`https://github.com/STAN/HelloWorld`</br>
+**Output**</br>
+`http_://github.com/_TomSmith/Hello-World`</br>
+`https://github.com/STAN_____/Hello_World`</br>
+
+# The development of PI project Programming Code
+* In 2004, the old version of PI-0.01.tgz was uploaded to this website `http://www.4tphi.net/~awalters/PI/PI.html` by the author of PI project. He has a lecture on the Toorcon 2004 conference, which has a [video recording on the Youtube](https://www.youtube.com/watch?v=YLDWBSyjkAc).
+![](https://github.com/bitpeach/Protocol-Informatics/blob/master/%5BOld%20Website%5D4tphi_net.png]
+
+* Now his old version code of `4tphi.net` domain has disappeared. Instead, a new domain name `http://phreakocious.net/PI/` has been changed during March, 2017. The `PI-0.02beat` version code has been uploaded to [this new website](http://phreakocious.net/PI/).
+
+![](https://github.com/bitpeach/Protocol-Informatics/blob/master/%5BNew%20Website%5DProtocol%20Informatics%20-%20Tools%20for%20Binary%20Protocol%20Analysis.png]