change for woodpecker syntax

.woodpecker.yml

@@ -3,15 +3,15 @@ kind: pipeline
 type: docker
 name: default
 
-steps:
-- name: build 
-  image: plugins/docker
-  settings:
-    repo: git.baubs.net/jan-henrik/overleaf-ldap
-    registry: git.baubs.net
-    username:
-      from_secret: docker_username
-    password:
-      from_secret: docker_password
-    auto_tag: true
+pipeline:
+  build:
+    image: plugins/docker
+    settings:
+      repo: git.baubs.net/jan-henrik/overleaf-ldap
+      registry: git.baubs.net
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+      auto_tag: true