Remove 'secondary' alignment text as redundant

Author: finanalyst

doc/Language/pod.pod6

@@ -82,17 +82,18 @@ for details of the various
 Raku pair notations.
 
 The configuration section may be extended over subsequent
-lines. As currently implemented, care needs to be taken to align the data.
+lines.
 Each subsequent line must start
 with an C<=> in the first virtual column, meaning that it must vertically
 align with the C<=> of the Pod6 Block declaration,
 and it must be followed
-by enough whitespace characters to pass the block identifier.
+by at least one horizontal whitespace character.
 
 For example:
 =begin code :lang<pod6>
      =for head1 :a-first-line-key<firstvalue> :another-first-line-key<xyz>
      =          :a-second-line-key(42)
+     = :a-third-line-key<third>
      Content for the header block
 =end code