cleanup the code examples, use cts:true-query() instead of cts:and-query(()) and remove unnecessary empty lines

Author: hansenmc

examples/corb2-project/src/main/ml-modules/ext/corb2-project/corb/transform.xqy

@@ -1,5 +1,3 @@
 xquery version "1.0-ml";
-
 declare variable $URI external;
-
 xdmp:log("Calling Corb transform on URI: " || $URI)

examples/corb2-project/src/main/ml-modules/ext/corb2-project/corb/uris.xqy

@@ -1,9 +1,4 @@
 xquery version "1.0-ml";
-
-(:
-Sample query that returns all URIs.
-:)
-
-let $uris := cts:uris((), (), cts:and-query(()))
-
-return (count($uris), $uris)
+(: Sample query that returns all URIs :)
+let $uris := cts:uris("", (), cts:true-query())
+return (count($uris), $uris)