fix typo

Author: gfldex

doc/Language/terms.pod6

@@ -176,7 +176,7 @@ Variables are discussed in the L<variable language docs |/language/variables>.
 X<|constant (Terms)>
 Constants are declared with C<constant> and do not require a sigil. The RHS is evaluated at compile time, what may be too early to make sense.
 
-    constant SpeedOfLight = 299792458/     # m/s
+    constant SpeedOfLight = 299792458;     # m/s
     constant PHI          = 1.61803398875; # The golden ratio is everywhere!
     constant POW2 = do { my int @table; @table = 1, 2, 4 ... 2**32; @table };
     say POW2[16];