more consistent

stream_spec.md

@@ -37,7 +37,8 @@ If `write` returns `false`,it *must* eventually emit `'drain'`. `write` returnin
 ### end()
 
 Calling `end` *may* set `writable` to `false`. 
-If the `Stream` is also readable, it *must* eventually emit 'end'.
+If the `Stream` is also readable, it *must* eventually emit `'end'`.
+the `Stream` *must* eventually emit `'close'` after `end()` is called (and `'end'` is emitted if also a readable `Stream`)
 
 ### destroy()
 
@@ -95,4 +96,4 @@ once any underlying resources are disposed of.
 
 ## request for comment
 
-thank you in advance!
+thank you in advance!