Make compile instructions in the readme easier to follow

[Apacelus]

Please make the instructions in the readme clearer. Instead of using unclear "before", "then" and long sentences with commands mixed in them, make the instructions very clear so anyone can follow them, instead of having to decipher the readme first. Example:

Installation:

1. git clone https://github.com/v1cont/yad.git yad-dialog-code
2. cd ./yad-dialog-code/
3. autoreconf -ivf && intltoolize
4. sudo ./configure && sudo make && sudo make install
5. gtk-update-icon-cache