fix table layout

Author: gfldex

doc/Language/quoting.pod6

@@ -60,16 +60,23 @@ in detail in later sections.
 Short       Long            Meaning
 
 :x          :exec           Execute as command and return results
+
 :w          :words          Split result on words (no quote protection)
 
 :qq         :double         Interpolate with :s, :a, :h, :f, :c, :b
+
 :s          :scalar         Interpolate $ vars
+
 :a          :array          Interpolate @ vars
+
 :h          :hash           Interpolate % vars
 
 :f          :function       Interpolate & calls
+
 :c          :closure        Interpolate {...} expressions
+
 :b          :backslash      Interpolate \n, \t, etc. (implies :q at least)
+
 :to         :heredoc        Parse result as heredoc terminator
 =end table