Updating technology data dataset.md

[aaronschilling]

Fixes #

Updating dataset.md of technology data.
Created metadata file.

Before merging into dev-branch, please make sure that the following points are checked:

• All pre-commit tests passed locally with: pre-commit run -a
  • black failed: Executable black not found
• File CHANGELOG.md was updated
• The docs were updated
• if dataset.mds were updated, the dataset docs were regenerated using
  python docs/generate_dataset_mds.py

If packages were modified:

• File poetry.lock was updated with: poetry lock
• A new env was successfully set up

WARNING: When modifying use snakemake <=7.32.0, cf. #186

If data flow was adjusted:

• Data pipeline run finished successfully with: snakemake -jX

• Esys appdata was created successfully with: snakemake -jX make_esys_appdata

  (with X = desired number of cores, e.g. 1)

[nesnoj]

Thx for this exhaustive docs!
I changed some format stuff and added some sources.