python-sphinxcontrib-httpdomain from devel:languages:python:backports project

需要 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/15.5/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain

需要 15.4 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/15.4/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain

需要 SLE 15 SP2 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/SLE_15_SP2/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain

需要 SLE 15 SP1 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/SLE_15_SP1/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain

需要 SLE 15 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/SLE_15/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain

需要 15.4 py39 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports/15.4_py39/devel:languages:python:backports.repo
zypper refresh
zypper install python-sphinxcontrib-httpdomain