fixup: add ^^ to [lex.operators]

Author: jensmaurer

source/lex.tex

@@ -799,7 +799,7 @@
     \terminal{? \ \ \ \ \ \ \ :: \ \ \ \ \ \ . \ \ \ \ \ \ \ .* \ \ \ \ \ \ -> \ \ \ \ \ \ ->* \ \ \ \ \ \~}\br
     \terminal{! \ \ \ \ \ \ \ + \ \ \ \ \ \ \ - \ \ \ \ \ \ \ * \ \ \ \ \ \ \ / \ \ \ \ \ \ \ \% \ \ \ \ \ \ \ \caret{} \ \ \ \ \ \ \ \& \ \ \ \ \ \ \ |}\br
     \terminal{= \ \ \ \ \ \ \ += \ \ \ \ \ \ -= \ \ \ \ \ \ *= \ \ \ \ \ \ /= \ \ \ \ \ \ \%= \ \ \ \ \ \ \caret{}= \ \ \ \ \ \ \&= \ \ \ \ \ \ |=}\br
-    \terminal{== \ \ \ \ \ \ != \ \ \ \ \ \ < \ \ \ \ \ \ \ > \ \ \ \ \ \ \ <= \ \ \ \ \ \ >= \ \ \ \ \ \ <=> \ \ \ \ \ \&\& \ \ \ \ \ \ ||}\br
+    \terminal{== \ \ \ \ \ \ != \ \ \ \ \ \ < \ \ \ \ \ \ \ > \ \ \ \ \ \ \ <= \ \ \ \ \ \ >= \ \ \ \ \ \ <=> \ \ \ \ \ \&\& \ \ \ \ \ \ || \ \ \ \ \ \ \caret{}\caret{}}\br
     \terminal{<< \ \ \ \ \ \ >> \ \ \ \ \ \ <<= \ \ \ \ \ >>= \ \ \ \ \ ++ \ \ \ \ \ \ -- \ \ \ \ \ \ ,}\br
     \terminal{\keyword{and} \ \ \ \ \ \keyword{or} \ \ \ \ \ \ \keyword{xor} \ \ \ \ \ \keyword{not} \ \ \ \ \ \keyword{bitand} \ \ \keyword{bitor} \ \ \ \keyword{compl}}\br
     \terminal{\keyword{and_eq} \ \ \keyword{or_eq} \ \ \ \keyword{xor_eq} \ \ \keyword{not_eq}}