correct nokolisp command descriptions

Author: shaunlebron

README.md

@@ -306,12 +306,12 @@ root expression.
 
 Paren commands are letters (need to verify):
 
-| Paren Command | Description  |
-|:--------------|:--------------------------------|
-| `a` | wrap in parens |
-| `r` | remove parens |
-| `w` | extend paren to next expression |
-| `c` | push last element out of paren |
+| Paren Command | Description |
+|:--------------|:-------------------------------|
+| `a` | wrap   |
+| `r` | unwrap  |
+| `w` | join with next line, then wrap |
+| `c` | extend parens to next line  |
 
 ## Maclisp