Add PUBLICATIONS.md
# Changelog
- Adds publications.md to include research articles that utilize NeMo.

# Format 

* Years are sorted in descending order, articles within the same year are sorted by month in ascending order. 
* Articles may contain Arxiv submissions, but reviewed articles are preferred. 
* In cases where Arxiv articles are accepted at a venue, the month/year of the **accepted paper** should be used to assign its position on the list (not its arxiv submission date).

```

# <Domain>

## (Optional) <Subdomain>

<details>
  <summary>YEAR</summary>
  
  * [Name of article](Link to Article)
  
</details>

--------

```

Signed-off-by: smajumdar <titu1994@gmail.com>