rear brake adjust diagram?

If your car can have disc brakes there is no adjustment. Here is a video that show the job being done and the adjustment after replacing the shoes.

https://youtu.be/1j7qDoi1LP0

Did you put new brakes on? Here is a guide that helps with low brake pedal as well

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Please run down these guides and report back.

What this means is use a brake adjusting gauge set it to the drums inner diameter, then fit it over the shoes and pull shoes apart to get a snug fitting drum, then follow the directions above...if you dont have the tool, trial and error will have to do! Use a flat blade screwdriver to help closing the shoes together if you need to...Pry at "3" This will push the ratchet mech away and allow the shoes to close up...