docs: adjust documentation to reflect single-binary deployments

docs/content/doc/setup/backups.md

@@ -24,33 +24,33 @@ To back up attachments and other files, it is enough to copy them [from the atta
 
 To create a backup from mysql use the `mysqldump` command:
 
-{{< highlight bash >}}
+```
 mysqldump -u <user> -p -h <db-host> <database> > vkunja-backup.sql
-{{< /highlight >}}
+```
 
 You will be prompted for the password of the mysql user.
 
 To restore it, simply pipe it back into the `mysql` command:
 
-{{< highlight bash >}}
+```
 mysql -u <user> -p -h <db-host> <database> < vkunja-backup.sql
-{{< /highlight >}}
+```
 
 ### PostgreSQL
 
 To create a backup from PostgreSQL use the `pg_dump` command:
 
-{{< highlight bash >}}
+```
 pg_dump -U <user> -h <db-host> <database> > vikunja-backup.sql
-{{< /highlight >}}
+```
 
 You might be prompted for the password of the database user.
 
 To restore it, simply pipe it back into the `psql` command:
 
-{{< highlight bash >}}
+```
 psql -U <user> -h <db-host> <database> < vikunja-backup.sql
-{{< /highlight >}}
+```
 
 For more information, please visit the [relevant PostgreSQL documentation](https://www.postgresql.org/docs/12/backup-dump.html).