chore: changelog typos

Closes ng-bootstrap#505

Author: maxokorokov

CHANGELOG.md

@@ -1,13 +1,13 @@
 <a name="1.0.0-alpha.1"></a>
-# [1.0.0-alpha.1](https://github.com/ng-bootstrap/ng-bootstrap/compare/1.0.0-alpha.0...v1.0.0-alpha.1) (2016-07-29)
+# [1.0.0-alpha.1](https://github.com/ng-bootstrap/ng-bootstrap/compare/1.0.0-alpha.0...1.0.0-alpha.1) (2016-07-29)
 
-This release adds supports for 2 new directives ([timepicker](https://ng-bootstrap.github.io/#/components/timepicker) and [typeahead](https://ng-bootstrap.github.io/#/components/typeahead)) and updates Bootstrap support to 4.0.0-alpha.3.
+This release adds support for 2 new directives ([timepicker](https://ng-bootstrap.github.io/#/components/timepicker) and [typeahead](https://ng-bootstrap.github.io/#/components/typeahead)) and updates Bootstrap support to 4.0.0-alpha.3.
 There are also small features and bug fixes for the existing widgets - see the details below.
 
 ### Bug Fixes
 
 * **dropdown:** use button elements instead of links ([aeeee01](https://github.com/ng-bootstrap/ng-bootstrap/commit/aeeee01)), closes [#490](https://github.com/ng-bootstrap/ng-bootstrap/issues/490)
-* **pagination:** display proper cusrsor on each page ([dca96fd](https://github.com/ng-bootstrap/ng-bootstrap/commit/dca96fd)), closes [#492](https://github.com/ng-bootstrap/ng-bootstrap/issues/492)
+* **pagination:** display proper cursor on each page ([dca96fd](https://github.com/ng-bootstrap/ng-bootstrap/commit/dca96fd)), closes [#492](https://github.com/ng-bootstrap/ng-bootstrap/issues/492)
 * **progressbar:** don't add bogus CSS classes ([56ea4c5](https://github.com/ng-bootstrap/ng-bootstrap/commit/56ea4c5)), closes [#496](https://github.com/ng-bootstrap/ng-bootstrap/issues/496)
 * **rating:** set cursor on stars of rating component ([#411](https://github.com/ng-bootstrap/ng-bootstrap/issues/411)) ([bcba259](https://github.com/ng-bootstrap/ng-bootstrap/commit/bcba259))