Temporarily enable documentation previews for debugging purposes

Pushing previews enables testing whether deployment will succeed,
without requiring further merges to the `main` branch.

Author: bauglir

docs/make.jl

@@ -16,4 +16,5 @@ makedocs(;
 
 deploydocs(;
            repo = "github.com/JuliaComputing/Multibody.jl",
-           devbranch = "main")
+           devbranch = "main",
+           push_preview = true)