Fix typo 'soure' -> 'source'

doc/api/pipelines.md

@@ -50,7 +50,7 @@ Example of response
     "iid": 12,
     "project_id": 1,
     "status": "pending",
-    "soure": "push",
+    "source": "push",
     "ref": "new-pipeline",
     "sha": "a91957a858320c0e17f3a0eca7cfacbff50ea29a",
     "web_url": "https://example.com/foo/bar/pipelines/47",
@@ -62,7 +62,7 @@ Example of response
     "iid": 13,
     "project_id": 1,
     "status": "pending",
-    "soure": "web",
+    "source": "web",
     "ref": "new-pipeline",
     "sha": "eb94b618fb5865b26e80fdd8ae531b7a63ad851a",
     "web_url": "https://example.com/foo/bar/pipelines/48",