Port to GitHub actions & publish to Terraform registry (#39)

* Port to GitHub actions

* Fix

* Make docs terraform registry compatible

docs/resources/bitbucketserver_project_hook.md

@@ -0,0 +1,18 @@
+# Resource: bitbucketserver_project_hook
+
+Manage a project level hook. Extends what Bitbucket does every time a repository changes, for example when code is pushed or a pull request is merged.
+
+## Example Usage
+
+```hcl
+resource "bitbucketserver_project_hook" "main" {
+  project = "MYPROJ"
+  hook    = "com.atlassian.bitbucket.server.bitbucket-bundled-hooks:force-push-hook"
+}
+```
+
+## Argument Reference
+
+* `project` - Required. Project Key the hook to enable is for.
+* `hook` - Required. The hook to enable on the project.
+* `settings` - Optional. Map of values to apply as settings for the hook. Contents dependant on the individual hook settings.