Reflow and de-indent before #2632

Author: JJ

doc/Type/Seq.pod6

@@ -26,11 +26,11 @@ A typical use case is L<method C<lines> in C<IO::Handle>|/type/IO::Handle#method
 which could use a lot of memory if it stored all the lines read from the
 file. So
 
-    =begin code
-    for open('README.md').lines -> $line {
-        say $line;
-    }
-    =end code
+=begin code
+for open('README.md').lines -> $line {
+    say $line;
+}
+=end code
 
 won't keep all lines from the file in memory.
 
@@ -55,9 +55,9 @@ B<Caution:> No program should ever assume a C<Seq> may only be iterated once
 even if not cached by the program. Caching is a volatile state exposed to the
 developer as an optimization. The C<Seq> may become cached by many operations,
 including calling C<perl> on the C<Seq> (if called prior to a non-cached
-iteration). From version 6.d, you C<.perl> can be called on consumed <Seq>. If a program assumes a Seq can only iterate once, but then is
-later changed to call one of these operations during the loop, that assumption
-will fail.
+iteration). From version 6.d, you C<.perl> can be called on consumed <Seq>. If a
+program assumes a Seq can only iterate once, but then is later changed to call
+one of these operations during the loop, that assumption will fail.
 
 =head1 Methods