fix: improve sample for docker-compose example

Author: JeromeBu

deployment-examples/docker-compose/.env.sample

@@ -2,8 +2,9 @@ DATABASE_URL=postgresql://catalogi:pg_password@postgres:5432/db
 # note it is note in DATABASE_URL the host is 'postgres', matching the container name in docker-compose.yml
 API_PORT=3084
 EXTERNAL_SOFTWARE_DATA_ORIGIN=wikidata
-README_URL=https://git.sr.ht/~codegouvfr/logiciels-libres/blob/main/sill.md
-TERMS_OF_SERVICE_URL=https://code.gouv.fr/sill/tos_fr.md
+
+OIDC_ISSUER_URI=https://auth.code.gouv.fr/auth/realms/codegouv
+OIDC_CLIENT_ID=sill
 
 VITE_HEAD="
   <title>Catalogi - Deployment exemple</title>