GitLab

* update title level

* Update examples & reproduction results of darts
Co-authored-by: colorjam <im.cqyan@google.com>

Co-authored-by: liuzhe-lz <40699903+liuzhe-lz@users.noreply.github.com>
Co-authored-by: colorjam <im.cqyan@google.com>

* New Crowdin translations by Github Action

* remove removed files in en_US
Co-authored-by: Crowdin Bot <support+bot@crowdin.com>

* Replace all v1.7 with v1.8

* Add v1.8 release note

* Change PAI into OpenPAI

* Update Release.md

* Refine relase note

* Update date of release
Co-authored-by: QuanluZhang <z.quanluzhang@gmail.com>

* fix broken link in compression benchmark doc

* use v1.8 link in doc

* Refine NAS benchmark docs and examples

* Improve docs of NAS benchmark

Typo correction.