chore: update changelog [skip ci]

Author: adhocore

CHANGELOG.md

@@ -1,7 +1,20 @@
+## [v0.0.6] 2018-08-16 00:08:45 UTC
+
+- [d933099](https://github.com/adhocore/php-cron-expr/commit/d933099) fix(expr): static ::instance()
+- [48eef4a](https://github.com/adhocore/php-cron-expr/commit/48eef4a) docs: bulk checks/filters
+- [8c23489](https://github.com/adhocore/php-cron-expr/commit/8c23489) test(expr): ...
+- [aab941e](https://github.com/adhocore/php-cron-expr/commit/aab941e) refactor(expr): simplify filter(), also cache undue case
+- [cd3cd33](https://github.com/adhocore/php-cron-expr/commit/cd3cd33) test(expr): filter(), getDues()
+- [7ec07c8](https://github.com/adhocore/php-cron-expr/commit/7ec07c8) feat(checker): make validator injectable
+- [0d6d85a](https://github.com/adhocore/php-cron-expr/commit/0d6d85a) feat(expr): add construct with injection/initiliazation
+- [b8aa4ce](https://github.com/adhocore/php-cron-expr/commit/b8aa4ce) feat(expr): add ::instance() api
+- [cee9bf7](https://github.com/adhocore/php-cron-expr/commit/cee9bf7) feat(expr): add filter(), ::getDues() and normalizeExpr()
+- [d73a078](https://github.com/adhocore/php-cron-expr/commit/d73a078) refactor(docblocks): document public apis/methods
+- [ee2cc96](https://github.com/adhocore/php-cron-expr/commit/ee2cc96) refactor: rename array of time parts to times
+
 ## [v0.0.5] 2018-08-15 10:08:16 UTC
 
 - [6fccf54](https://github.com/adhocore/php-cron-expr/commit/6fccf54) test(validator): instep changes
 - [93d2f7f](https://github.com/adhocore/php-cron-expr/commit/93d2f7f) fix(validator): inStep when start+step>end | closes #12
 - [895eade](https://github.com/adhocore/php-cron-expr/commit/895eade) docs: update readme
 - [bc65912](https://github.com/adhocore/php-cron-expr/commit/bc65912) docs: fix badge
-