add documentation for ne and nefield validation function

#38

doc.go

@@ -197,6 +197,11 @@ Here is a list of the current built in validators:
 		equal to the parameter given. For slices, arrays, and maps,
 		validates the number of items. (Usage: eq=10)
 
+	ne
+		For strings & numbers, eq will ensure that the value is not
+		equal to the parameter given. For slices, arrays, and maps,
+		validates the number of items. (Usage: eq=10)
+
 	gt
 		For numbers, this will ensure that the value is greater than the
 		parameter given. For strings, it checks that the string length
@@ -233,6 +238,13 @@ Here is a list of the current built in validators:
 		Validation on Password field using validate.Struct Usage(eqfield=ConfirmPassword)
 		Validating by field validate.FieldWithValue(password, confirmpassword, "eqfield")
 
+	nefield
+		This will validate the field value against another fields value either within
+		a struct or passed in field.
+		usage examples are for ensuring two colors are not the same:
+		Validation on Color field using validate.Struct Usage(nefield=Color2)
+		Validating by field validate.FieldWithValue(color1, color2, "nefield")
+
 	gtfield
 		Only valid for Numbers and time.Time types, this will validate the field value
 		against another fields value either within a struct or passed in field.