Document loggly hostname change workaround while we don't have 0.1.2

[jmt4b04d4v]

As we still don't have a release 0.1.2 which includes the loggly hostname change, we can document the following workaround to set endpointUrl instead of inputKey as a workaround:

  <appender name="logglyAppender" class="ch.qos.logback.ext.loggly.LogglyAppender">
    <!-- <inputKey>YOUR_LOGGLY_INPUT_KEY_HERE</inputKey> -->
    <endpointUrl>https://logs-01.loggly.com/inputs/YOUR_LOGGLY_INPUT_KEY_HERE</endpointUrl>
  </appender>

You guys know better if this is a good idea and where is the best place.

[tony19]

v0.1.2 is released now