Update CHANGES.md

CHANGES.md

@@ -6,6 +6,7 @@ v2.7.0
 * **Fixed** broken backward compatibilty introduced in v2.6.2 (issues referenced in [#148](https://github.com/axuno/SmartFormat/issues/148), [#147](https://github.com/axuno/SmartFormat/issues/147), [#143](https://github.com/axuno/SmartFormat/issues/143)).
 * **Fixed**: Take an erroneous format string like `"this is {uncomplete"` (missing closing brace). Before v2.7.0 the parser handled `{uncomplete` as a `TextLiteral`, not as an erroneous `Placeholder`.
 * **Fixed**: Since v1.6.1 there was an undiscovered issue: If the `Parser` encountered a `ParsingError.TooManyClosingBraces`, this closing brace was simply "swallowed-up". This way, the result with `Parser.ErrorAction.MaintainTokens` differs from the original format string. From v2.7.0, the redundant closing brace is handled as a `TextLiteral`. 
+* **Improved**: For `ParsingError.TrailingOperatorsInSelector` and `ParsingError.InvalidCharactersInSelector` the causing character is now included in the `Exception.Message`.
 * If you have issues formatting HTML with CSS and/or JavaScript included, please read the bullet-proof [How-to in the Wiki](https://github.com/axuno/SmartFormat/wiki/HTML-with-CSS-or-JavaScript)
 
 v2.6.2