Clean up documentation

lang/go/src/package.sld

@@ -17,6 +17,9 @@
           (map go-stdlib-ref '("encoding/json" "fmt" "go/build" "io" "io/fs" "os" "path" "path/filepath" "sort" "strings" "time"))
           (list (cons "main.go" (zfile (foreign-value "parser_source" nonnull-c-string)))))))
 
+    ;; Uses IFD to find each Go package defined inside this virtual filesystem,
+    ;; returning a vector containing pairs, mapping each directory to the
+    ;; package defined within.
     (define (find-packages-inside-vfs vfs)
       (define input
         #~,(call-with-port