Add kodiak integration for automatically merge PR (#135)

.kodiak.toml

@@ -0,0 +1,19 @@
+
+# .kodiak.toml
+version = 1
+[merge]
+method = "squash" # default: "merge"
+delete_branch_on_merge = true # default: false
+optimistic_updates = true # default: true
+prioritize_ready_to_merge = true # default: false
+
+[merge.message]
+title = "pull_request_title" # default: "github_default"
+body = "github_default" # default: "github_default"
+strip_html_comments = true # default: false
+
+[update]
+always = true # default: false
+
+[approve]
+auto_approve_usernames = ["hossainemruz"]