Typo's in the multiple files of murano

[venkatamahesh]

1.) https://github.com/openstack/murano/blob/master/doc/source/specification/murano-env-temp.rst#get-environment-templates-details
     https://github.com/openstack/murano/blob/master/doc/source/specification/murano-env-temp.rst#delete-environment-template
     https://github.com/openstack/murano/blob/master/doc/source/specification/murano-env-temp.rst#adding-application-to-environment-template

     https://github.com/openstack/murano/blob/master/doc/source/specification/murano-env-temp.rst#get-applications-information-from-an-environment-template

    https://github.com/openstack/murano/blob/master/doc/source/specification/murano-env-temp.rst#create-an-environment-from-an-environment-template
          Error 404: The environment template does not exit.
It should be "does not exist".

2.) https://github.com/openstack/murano/blob/master/doc/source/install/ssl.rst
         Your ==> You

3.) https://github.com/openstack/murano/blob/master/doc/source/install/prepare.rst#system-prerequisites
         Operation systems ==> Operating systems

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/218674

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/218674
Committed: https://git.openstack.org/cgit/openstack/murano/commit/?id=be9d1415b3380c9effd47ab7af4900c1122f11fb
Submitter: Jenkins
Branch: master

commit be9d1415b3380c9effd47ab7af4900c1122f11fb
Author: venkatamahesh <email address hidden>
Date: Sun Aug 30 22:34:46 2015 +0530

    Fixed the typo's in multiple files

    Error 404 : doesn't exit
    exit => exist and
    Operation systems => Operating systems

    Change-Id: Ie39fa61222203430bbf7fa63cbc148acbb3bc647
    Closes-Bug: #1490234