No newline in concatenated further description

[euronion]

Addresses this issue: #211 (comment)

Changes proposed in this Pull Request

Checklist

• Code changes are sufficiently documented; i.e. new functions contain docstrings and further explanations may be given in doc.
• [n/a] Data source for new technologies is clearly stated.
• [n/a] Newly introduced dependencies are added to environment.yaml (if applicable).
• A note for the release notes doc/release_notes.rst of the upcoming release is included.
• I consent to the release of this PR's code under the GPLv3 license.