pip freeze for doc generation

doc/requirements.txt

@@ -1,5 +1,32 @@
-sphinx_rtd_theme
-sphinx_design
-sphinxcontrib-bibtex
-mistune<2.0.0
-m2r2
+alabaster==0.7.13
+Babel==2.12.1
+certifi==2023.7.22
+charset-normalizer==3.2.0
+docutils==0.17.1
+idna==3.4
+imagesize==1.4.1
+Jinja2==3.1.2
+latexcodec==2.0.1
+m2r2==0.3.2
+MarkupSafe==2.1.3
+mistune==0.8.4
+packaging==23.1
+pybtex==0.24.0
+pybtex-docutils==1.0.3
+Pygments==2.16.1
+PyYAML==6.0.1
+requests==2.31.0
+six==1.16.0
+snowballstemmer==2.2.0
+Sphinx==5.3.0
+sphinx-rtd-theme==1.3.0
+sphinx_design==0.5.0
+sphinxcontrib-applehelp==1.0.7
+sphinxcontrib-bibtex==2.6.1
+sphinxcontrib-devhelp==1.0.5
+sphinxcontrib-htmlhelp==2.0.4
+sphinxcontrib-jquery==4.1
+sphinxcontrib-jsmath==1.0.1
+sphinxcontrib-qthelp==1.0.6
+sphinxcontrib-serializinghtml==1.1.9
+urllib3==2.0.4