simplify language

doc/Language/operators.pod6

@@ -659,7 +659,7 @@ class or role, even after it has been redefined in the child class.
 multi sub prefix:<++>($x is rw) is assoc<non>
 =end code
 
-Increments its argument by one, and returns the incremented value.X<|increment operator>
+Increments its argument by one, and returns the updated value.X<|increment operator>
 
     my $x = 3;
     say ++$x;       # 4
@@ -675,7 +675,7 @@ semantics.
 multi sub prefix:<-->($x is rw) is assoc<non>
 =end code
 
-Decrements its argument by one, and returns the decremented value.X<|decrement operator>
+Decrements its argument by one, and returns the updated value.X<|decrement operator>
 
     my $x = 3;
     say --$x;       # 2
@@ -692,7 +692,7 @@ semantics.
 multi sub postfix:<++>($x is rw) is assoc<non>
 =end code
 
-Increments its argument by one, and returns the unincremented value.X<|increment operator>
+Increments its argument by one, and returns the original value.X<|increment operator>
 
     my $x = 3;
     say $x++;       # 3
@@ -715,7 +715,7 @@ undefined values, it returns 0:
 multi sub postfix:<-->($x is rw) is assoc<non>
 =end code
 
-Decrements its argument by one, and returns the undecremented value.X<|decrement operator>
+Decrements its argument by one, and returns the original value.X<|decrement operator>
 
     my $x = 3;
     say $x--;       # 3