GitLab

* Add new community notebook - wav2vec2 with GPT

* Update:community.md, new nb add
* feat: notebook of wav2vec xlsr ctc decoding with gpt logit adjustment
* Update: Wav2vec2 CTC decoding with gpt2 adjustment

* Update docs/source/community.md
Co-authored-by: Suraj Patil <surajp815@gmail.com>