Add docs (#4358)

# .readthedocs.yaml

# Read the Docs configuration file

# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details

# Required

version: 2

# Build documentation in the docs/ directory with Sphinx

sphinx:

   configuration: rtd_docs/conf.py

# Optionally build your docs in additional formats such as PDF

formats:

   - pdf

conda:

  environment: rtd_docs/environment.yml

# Minimal makefile for Sphinx documentation

#

# You can set these variables from the command line, and also

# from the environment for the first two.

SPHINXOPTS    ?=

SPHINXBUILD   ?= sphinx-build

SOURCEDIR     = .

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)

# Configuration file for the Sphinx documentation builder.

#

# This file only contains a selection of the most common options. For a full

# list see the documentation:

# https://www.sphinx-doc.org/en/master/usage/configuration.html

# -- Path setup --------------------------------------------------------------

# 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.

#

# import os

# import sys

# sys.path.insert(0, os.path.abspath('.'))

# -- Project information -----------------------------------------------------

project = 'ISIS'

copyright = '2021'

author = 'USGS Astrogeology Software Team'

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

# Add any Sphinx extension module names here, as strings. They can be

# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom

# ones.

extensions = [

]

# Add any paths that contain templates here, relative to this directory.

templates_path = ['_templates']

# List of patterns, relative to source directory, that match files and

# directories to ignore when looking for source files.

# This pattern also affects html_static_path and html_extra_path.

exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']

# -- Options for HTML output -------------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for

# a list of builtin themes.

#

html_theme = 'alabaster'

# Add any paths that contain custom static files (such as style sheets) here,

# relative to this directory. They are copied after the builtin static files,

# so a file named "default.css" will overwrite the builtin "default.css".

html_static_path = ['_static']

 No newline at end of file

channels:

  - conda-forge

dependencies:

  - python>=3

Welcome to ISIS's documentation!

================================

Placeholder for future documentation. 

For current documentation, please go to: https://isis.astrogeology.usgs.gov/

Or for Github: https://github.com/USGS-Astrogeology/ISIS3