Return the created PR URL

[ryz310]

Currently, PrComet.create! returns true if the PR is successfully created.
But I want to know the URL of the created PR.
The method should return the URL instead of true value.

pr_comet/lib/pr_comet.rb

Lines 72 to 83 in 42001bd

	def create!(**options)
	options[:validate] = true if options[:validate].nil?
	return false if options[:validate] && !git_condition_valid?
	git.push(github_token_url, topic_branch)
	pr_number = github.create_pull_request(generate_create_pr_options(options))
	github.add_labels(pr_number, *options[:labels]) unless options[:labels].nil?
	unless options[:project_column_name].nil?
	github.add_to_project(pr_number, generate_add_to_project_options(options))
	end
	true
	end