How to use the recommonmark.parser.CommonMarkParser.github_doc_root function in recommonmark

# -- General configuration ------------------------------------------------

# Version information.
from pkg_resources import get_distribution

release = get_distribution("gluonts").version
version = ".".join(release.split(".")[:2])  # strip major.minor version only

# General information about the project.
project = "GluonTS"
copyright = "2019, Amazon"
author = "Amazon"
github_doc_root = "http://gluon-ts.mxnet.io/{}/".format(str(version))

# add markdown parser
CommonMarkParser.github_doc_root = github_doc_root
source_parsers = {".md": CommonMarkParser}

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones
extensions = [
    "sphinx.ext.autodoc",
    "sphinx.ext.autosummary",
    "sphinx.ext.doctest",
    "sphinx.ext.viewcode",
    "sphinx.ext.intersphinx",
    "sphinx.ext.napoleon",
    "sphinx.ext.todo",
    "sphinx.ext.coverage",
    "sphinx.ext.mathjax",
    "sphinx.ext.ifconfig",
    "nbsphinx",

# -- General configuration ------------------------------------------------

# Version information.
import gluonnlp as nlp
version = nlp.__version__
release = nlp.__version__

# General information about the project.
project = 'gluonnlp'
author = '%s developers' % project
copyright = '2019, %s' % author
github_doc_root = 'http://gluon-nlp.mxnet.io/{}/'.format(str(version))

# add markdown parser
CommonMarkParser.github_doc_root = github_doc_root
extensions = ['recommonmark']

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones
extensions = [
    'sphinx.ext.autodoc',
    'sphinx.ext.autosummary',
    'sphinx.ext.doctest',
    'sphinx.ext.viewcode',
    'sphinx.ext.intersphinx',
    'sphinx.ext.napoleon',
    'sphinx_autodoc_typehints',
    'sphinx.ext.mathjax',
    'sphinx_gallery.gen_gallery',
    'nbsphinx',
    'IPython.sphinxext.ipython_console_highlighting',

# documentation root, use os.path.abspath to make it absolute, like shown here.
curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
sys.path.insert(0, os.path.join(curr_path, '../python/'))
sys.path.insert(0, os.path.join(curr_path, '../topi/python'))
sys.path.insert(0, os.path.join(curr_path, '../vta/python'))

# -- General configuration ------------------------------------------------

# General information about the project.
project = u'tvm'
author = u'%s developers' % project
copyright = u'2018, %s' % author
github_doc_root = 'https://github.com/tqchen/tvm/tree/master/docs/'

# add markdown parser
CommonMarkParser.github_doc_root = github_doc_root
source_parsers = {
    '.md': CommonMarkParser
}
os.environ['TVM_BUILD_DOC'] = '1'
# Version information.
import tvm
version = tvm.__version__
release = tvm.__version__

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones
extensions = [
    'sphinx.ext.autodoc',
    'sphinx.ext.autosummary',
    'sphinx.ext.intersphinx',
    'sphinx.ext.napoleon',

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
sys.path.insert(0, os.path.join(curr_path, '../python/'))

# -- General configuration ------------------------------------------------

# General information about the project.
project = u'vta'
author = u'%s developers' % project
copyright = u'2018, %s' % author
github_doc_root = 'https://github.com/uwsaml/vta/tree/master/docs/'

# add markdown parser
CommonMarkParser.github_doc_root = github_doc_root
source_parsers = {
    '.md': CommonMarkParser
}
os.environ['VTA_BUILD_DOC'] = '1'
# Version information.
import vta
version = vta.__version__
release = vta.__version__

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones
extensions = [
    'sphinx.ext.autodoc',
    'sphinx.ext.autosummary',
    'sphinx.ext.intersphinx',
    'sphinx.ext.napoleon',

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
sys.path.insert(0, os.path.join(curr_path, '../python/'))

# -- General configuration ------------------------------------------------

# General information about the project.
project = u'nnvm'
author = u'%s developers' % project
copyright = u'2017, %s' % author
github_doc_root = 'https://github.com/dmlc/nnvm/tree/master/docs/'

# add markdown parser
CommonMarkParser.github_doc_root = github_doc_root
source_parsers = {
    '.md': CommonMarkParser
}
os.environ['NNVM_BUILD_DOC'] = '1'
# Version information.
import nnvm
version = nnvm.__version__
release = nnvm.__version__

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones
extensions = [
    'sphinx.ext.autodoc',
    'sphinx.ext.autosummary',
    'sphinx.ext.intersphinx',
    'sphinx.ext.napoleon',