spacy: convert XPOS->spacy/p, UPOS->spacy/u, msd, dependency

Change-Id: If3964653cf9859361e51c953d6ba950f56c5129c
diff --git a/Readme.pod b/Readme.pod
index 86d50ac..26a2348 100644
--- a/Readme.pod
+++ b/Readme.pod
@@ -483,6 +483,7 @@
 
   Spacy
     #Morpho
+    #Dependency
 
   Talismane
     #Dependency