convert lesson from jekyll to sphinx

Author: bast

.gitignore

@@ -1,8 +1,10 @@
-_drafts/
-_site/
-.sass-cache
-Gemfile.lock
-# vim swap files
-*.swp
-*~
-.jekyll-cache/
+_build/
+build/
+.ipynb_checkpoints
+/venv*
+.jupyter_cache
+jupyter_execute
+/content/__pycache__/
+/.ccls-cache/
+/content/.auctex-auto/
+/content/code/*/solution/build*

.gitmodules

@@ -393,4 +393,3 @@ the avoidance of doubt, this paragraph does not form part of the
 public licenses.
 
 Creative Commons may be contacted at creativecommons.org.
-

Gemfile

@@ -0,0 +1,20 @@
+# 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     = content
+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)

LICENSE

@@ -1,5 +1,3 @@
-
-
 # [Introduction to version control with Git](https://coderefinery.github.io/git-intro/)
 
-- [Credit and license](https://coderefinery.github.io/git-intro/license/)
+- [Credit and license](https://coderefinery.github.io/git-intro/credits/)