docfd: added missing deps

Author: darrenldl

packages/docfd/docfd.0.3.3/opam

@@ -16,6 +16,10 @@ depends: [
   "fmt" {>= "0.9.0"}
   "angstrom" {>= "0.15.0"}
   "containers" {>= "3.6"}
+  "oseq"
+  "spelll"
+  "notty"
+  "nottui"
   "cmdliner"
   "odoc" {with-doc}
 ]