This fixes the following warnings in `appstreamcli validate`:
W: org.gnome.Calls:239: description-spurious-text
The description element contains raw text that is not in any paragraph or other permitted tag.
This is not allowed and the additional text may be ignored by parsers or raise errors.
W: org.gnome.Calls:239: description-no-valid-content
The description element does not contain any valid content (paragraphs, enumerations, etc.).
Signed-off-by: Evangelos Ribeiro Tzaras <devrtz@fortysixandtwo.eu>
Part-of: <https://gitlab.gnome.org/GNOME/calls/-/merge_requests/781>
Fixes the error that occurs during validation:
E: org.gnome.Calls:390: description-para-markup-invalid a
This description paragraph contains invalid markup. Currently, only <em/> and <code/> are
permitted.
Somehow CI missed this.
