Add ReadTheDocs config and update doc requirements

Introduces .readthedocs.yaml for documentation builds and adds a placeholder references.bib file. Updates docs/requirements.txt to include matplotlib, numpy, PyQt5, and qtpy for enhanced documentation capabilities.

Author: zoccoler

.readthedocs.yaml

@@ -0,0 +1,24 @@
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.13"
+  jobs:
+    pre_build:
+      # Generate on-the-fly Sphinx configuration from Jupyter Book's _config.yml
+      - "jupyter-book config sphinx docs/"
+
+sphinx:
+  configuration: docs/conf.py
+
+python:
+  install:
+    - requirements: docs/requirements.txt
+    - method: pip
+      path: .
+
+formats:
+  - pdf
+  - epub

docs/references.bib

@@ -0,0 +1,2 @@
+---
+---

docs/requirements.txt

@@ -2,3 +2,7 @@ sphinx-inline-tabs
 sphinx-proof
 sphinx-examples
 jupyter-book
+matplotlib
+numpy
+PyQt5
+qtpy