Add .spr.yml config

This makes the repo work with https://github.com/ejoffe/spr
(and my temporary fork, https://github.com/leoluk/spr)

commit-id:2b0916ca

.spr.yml

@@ -0,0 +1,7 @@
+githubRepoOwner: certusone
+githubRepoName: wormhole
+githubHost: github.com
+requireChecks: true
+requireApproval: true
+githubRemote: origin
+githubBranch: dev.v2