Revert "Modified Readme file"

This reverts commit 00894e5425826580d52dbb7a6fbd94eed06f9339.
Revert "Revert "Modified Readme file""

This reverts commit 60cd1b7aaa121ec17d1cbc72964f8203e1277fb0.
Add Pre-read function

This function can be used in protocal parser