cue/build: fix typo reference to cue/load package

Change-Id: Id0316d858155274d78b0b3aad6ff95ebb0770bad
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/5760
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>
diff --git a/cue/build/instance.go b/cue/build/instance.go
index 8bb5b56..cd59a17 100644
--- a/cue/build/instance.go
+++ b/cue/build/instance.go
@@ -31,7 +31,7 @@
 // An Instance describes the collection of files, and its imports, necessary
 // to build a CUE instance.
 //
-// A typical way to create an Instance is to use the loader package.
+// A typical way to create an Instance is to use the cue/load package.
 type Instance struct {
 	ctxt *Context