Covalent

Fixed

- publish workflow, using `docker buildx` to build images for x86 and ARM, prepare manifest and push to ECR so that pulls will match the correct architecture.
- typo in CONTRIBUTING
- installing `gcc` in Docker image so Docker can build wheels for `dask` and other packages that don't provide ARM wheels

Changed

- updated versions in `requirements.txt` for `matplotlib` and `dask`

Added

- `MANIFEST.in` did not have `covalent_dispatcher/_service` in it due to which the PyPi package was not being built correctly. Added the `covalent_dispatcher/_service` to the `MANIFEST.in` file.

Fixed

- setuptools properly including data files during installation

Fixed

- Added service folder in covalent dispatcher to package.

Fixed

- `README.md` images now use master branch's raw image urls hosted on <https://github.com> instead of <https://raw.githubusercontent.com>. Also, switched image rendering from html to markdown.

Fixed

- dispatcher server app included in sdist
- raw image urls properly used

Fixed

- raw image urls used in readme