How to make a Cold frame

I made a cold frame for my garden and though it would be nice to add some instructions on how to make and since it would not let me add to the group I am in , here is the link

https://savvygardening.com/build-a-diy-cold-frame-using-an-old-window/

These instructions are copyrighted to savvygardening , I am just passing on so everyone can have a go at making one :-)