fix publish .deb files (#33)

Author: hsbasu

.github/workflows/publish-deb.yml

@@ -34,7 +34,7 @@ jobs:
           sudo apt install -y build-essential debhelper devscripts dh-python \
           acpi gobject-introspection gir1.2-appindicator3-0.1 gir1.2-gtk-3.0 \
           libnotify4 libappindicator3-1 python3 python3-configobj python3-gi \
-          python3-setproctitle python3-tldextract
+          python3-setproctitle python3-sphinx python3-tldextract
       
       - name: build-deb
         run: |