Its pretty simple... I dont have any pics but can prolly take some for you sometime this week if you still need them... to make it simple...

Use a soldering wand to melt off the plastic on the metal strips on each side

tape the opposite ends up with electrical tape

cut just enough of the wire covering off to fit in the now plastic free metal strip

twist the wire ends and then smush em with the soldering wand and kind of spread em out a little bit

hold the soldering wand on the wire and rub whatever sodder you have on the wire until its covered... remove the wand ... let it harden and put some electrical tape on it.

Plug it into a thermostat and your good to go.