ci: added ReadTheDocs config files

.readthedocs.yaml

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+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required. I presume it to be the latest...
+version: 2
+
+# Set the OS, Python version and other tools you might need
+build:
+  os: ubuntu-latest
+  tools:
+    #python: "3.12"
+    golang: "1.22"
+
+# Build documentation in the "docs/" directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+
+  # Optionally build your docs in additional formats such as PDF and ePub
+  formats:
+    - pdf
+    - epub
+
+# Optional but recommended, declare the Python requirements required
+# to build your documentation
+# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
+# python:
+#    install:
+#    - requirements: docs/requirements.txt
+#

docs/conf.py

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+## Very rudimentary project information ##
+project = 'pixelview'
+copyright = '2019, Joey Sabey'
+author = 'Joey Sabey
+
+release = '0.0.0'
+version = '0.0.0'