need for Advanced Redis configurations about channels_redis

[bbrowning918]

The hosts section of the README outlines some very basic examples and has a link to the redis connection docs with all the config redis-py supports. Some different wording or another example might help make that more visible or clear.

The main channels docs is sparse on the config topic but the root of it is channels-redis just passes things along as-is.

As for matching up with the cache framework exactly, I can already see some mismatch between redis-py expecting connection_pool and the cache framework using CONNECTION_POOL_CLASS which might be hard to enforce/standardize. Would sharing some variables work?

REDIS = "redis://127.0.0.1:6379"
POOL = "redis.connection.ConnectionPool"
TIMEOUT = 3600

CACHES = {
    "default": {
        "BACKEND": "django.core.cache.backends.redis.RedisCache",
        "LOCATION": REDIS,
        "OPTIONS": {
           "CONNECTION_POOL_CLASS": POOL,
           "SOCKET_CONNECT_TIMEOUT": TIMEOUT
       }
    }
}

CHANNEL_LAYERS = {
    "default: {
        "CONFIG": {
           "hosts" = [{
               "address": REDIS,
               "connection_pool": POOL,
               "socket_connect_timeout": TIMEOUT
           }]
       }
    }
}

Forgive any config errors, I am guessing on the formats/syntax :D