Updated doc. Fixes #2916.

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#### Description <!-- Describe your changes in detail -->

Add a separate connection for each nats_url, for subscriber workers. Basically tested it locally, with 3 nats_url and 2 workers.

Thanks, Stefan You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/2918

-- Commit Summary --

* <a href="https://github.com/kamailio/kamailio/pull/2918/commits/dd86ed8d88ad1e25a76534d4820a9dd6f88103a3">nats: Add one subscriber connection per nats_url</a>

-- File Changes --

M src/modules/nats/doc/nats_admin.xml (4) M src/modules/nats/nats_mod.c (41) M src/modules/nats/nats_mod.h (2)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2918.patch https://github.com/kamailio/kamailio/pull/2918.diff