fix readthedocs build

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Quick install guide update (apache#226)

* Cleanup

* Updated networking and added config drive

* Updated install guide

* fixed word order

* Update qig.rst

* Removed incorrect vlan id

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update qig.rst

* Update source/adminguide/api.rst

Co-authored-by: dahn <daan.hoogland@gmail.com>

* Update qig.rst

* Update qig.rst

* Update source/quickinstallationguide/qig.rst

Co-authored-by: sureshanaparti <12028987+sureshanaparti@users.noreply.github.com>

* Update source/quickinstallationguide/qig.rst

Co-authored-by: sureshanaparti <12028987+sureshanaparti@users.noreply.github.com>

Co-authored-by: Andrija Panic <45762285+andrijapanicsb@users.noreply.github.com>
Co-authored-by: dahn <daan.hoogland@gmail.com>
Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Co-authored-by: sureshanaparti <12028987+sureshanaparti@users.noreply.github.com>

4.15.1.0: retag 4.15.1.0 docs with k8s provider

4.14.1.0 docs

New changes for VMware vSphere primary storage addition to support ne…

…w protocol types and storage policies at compute and disk offerings (apache#181)

kvm: direct download templates for system VM (apache#134)

* kvm: direct download templates for system VM

System VMs now support direct download templates.
Different direct download timeouts have been made configurable with new global settings.

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

* suggestion applied

Co-authored-by: Andrija Panic <45762285+andrijapanicsb@users.noreply.github.com>

Co-authored-by: Andrija Panic <45762285+andrijapanicsb@users.noreply.github.com>

vsphere 6.7u3-u3f crash notice (apache#130)

* Update compat.rst

* Update compat.rst

add note on firewall for integration.api.port 8096

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Updated documentation for 4.12.0.0 release