Update ROADMAP.md

Author: D4Vinci

ROADMAP.md

@@ -6,7 +6,7 @@
 - [ ] Create detailed documentation for 'readthedocs' website, preferably add Github action for deploying it.
 - [ ] Create a Scrapy plugin/decorator to make it replace parsel in the response argument when needed.
 - [ ] Need to add more functionality to `AttributesHandler` and more navigation functions to `Adaptor` object (ex: functions similar to map, filter, and reduce functions but here pass it to the element and the function is executed on children, siblings, next elements, etc...)
-- [ ] Add `.filter` method to `Adaptors` object and other similar methods.
+- [x] Add `.filter` method to `Adaptors` object and other similar methods.
 - [ ] Add functionality to automatically detect pagination URLs
 - [ ] Add the ability to auto-detect schemas in pages and manipulate them.
 - [ ] Add `analyzer` ability that tries to learn about the page through meta elements and return what it learned