Updated readme roadmap

Readme.md

@@ -6,8 +6,8 @@ to run the project, simply `go run .`
 
 ### Core
  - [x] Implement Bubbletea framework
- - [ ] Implement lipgloss styling
- - [ ] Implement bubbles widgets (where applicable)
+ - [x] Implement lipgloss styling
+ - [ ] Implement viewport logic via bubbles
  - [x] Implement ntcharts framework for tables
 
 ### Extras