added documentation in sphinx

# Minimal makefile for Sphinx documentation

#

# You can set these variables from the command line.

SPHINXOPTS    =

SPHINXBUILD   = sphinx-build

SOURCEDIR     = source

BUILDDIR      = build

# Put it first so that "make" without argument is like "make help".

help:

	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

.PHONY: help Makefile

# Catch-all target: route all unknown targets to Sphinx using the new

# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).

%: Makefile

	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

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