Add some comments

Author: DilumAluthge

test/utilities/git.jl

@@ -19,6 +19,7 @@ QQDtEmQvWdgz+HtIuTG1ySJ9FYO6LeCEXHtQX78aOfNaj2jqLTXHdqrMr0V5exJcNV4XSc
 -----END OPENSSH PRIVATE KEY-----
 """
 
+# TODO: begin delete these lines
 struct MyForge <: GitForge.Forge
 end
 struct MyCIService <: CompatHelper.CIService
@@ -27,6 +28,7 @@ struct MyRepo <: CompatHelper.AbstractRepo
     local_remote_path::String
 end
 CompatHelper.get_url_for_ssh(::MyForge, ::MyCIService, repo::MyRepo) = repo.local_remote_path
+# TODO: end delete these lines
 
 @testset "git_push" begin
     function create_local_remote(dir::AbstractString)