Move roast to alphabetically logical spot. Expanded acronym.

S99-glossary.pod

@@ -611,11 +611,6 @@ Successor to L<PAST>.
 Process data asynchronously when possible, and don't care in which order the
 result data is returned.
 
-=head2 roast
-
-The Perl 6 L<specification tests|/spectest>, which live here: L<https://github.com/perl6/roast/>
-Originally developed for L</pugs>, it now serves all Perl 6 implementations.
-
 =head2 Rakudo
 
 An implementation of Perl 6 originally targetting L</Parrot>, it now targets
@@ -650,6 +645,12 @@ contexts.
 
 =head2 revert
 
+=head2 roast
+
+The Perl 6 L<specification tests|/spectest>, which live here: L<https://github.com/perl6/roast/>
+Originally developed for L</pugs>, it now serves all Perl 6 implementations. Why roast? It's the
+B<r>epository B<o>f B<a>ll B<s>pec B<t>ests.
+
 =head2 role
 
 =head2 runtime