Bug 38131: ILS-DI doc must show renewals_count

Bug 38131: ILS-DI doc must show renewals_count

Since Bug 30275 renamed issues.renewals to issues.renewals_count, the ILS-DI doc needs to be updated in :
koha-tmpl/opac-tmpl/bootstrap/en/modules/ilsdi.tt
Note that service 'RenewLoan' returns 'renewals' this has not changed.

Test plan :
1) Enable ILS-DI webservice
2) Go to opac : /cgi-bin/koha/ilsdi.pl
3) Click on 'GetRecords'
4) Check you see 'renewals_count' in 'Example response'
5) Click on 'GetPatronInfo'
6) Check you see 'renewals_count' in 'Example response'

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>