[DOC] Auto scaling page should be updated

[Udara Liyanage]

Hi,

$subject

[1]
https://cwiki.apache.org/confluence/display/STRATOS/4.0.0+Autoscaling+Guide

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Udara Liyanage
Software Engineer
WSO2, Inc.: http://wso2.com
lean. enterprise. middleware

web: http://udaraliyanage.wordpress.com
phone: +94 71 443 6897