README.md doesn't need to be a notebook anymore

Author: basnijholt

README.md

@@ -1,15 +1,3 @@
----
-kernelspec:
-  name: python3
-  display_name: python3
-jupytext:
-  text_representation:
-    extension: .md
-    format_name: myst
-    format_version: '0.13'
-    jupytext_version: 1.13.8
----
-
 <!-- badges-start -->
 
 # ![logo](https://adaptive.readthedocs.io/en/latest/_static/logo.png) adaptive

docs/source/algorithms_and_examples.md

@@ -15,12 +15,10 @@ execution:
 ```{include} ../../README.md
 ---
 start-after: <!-- summary-end -->
-end-before: not-in-documentation-start -->
+end-before: <!-- not-in-documentation-start -->
 ---
 ```
 
-
-
 - {class}`~adaptive.Learner1D`, for 1D functions `f: ℝ → ℝ^N`,
 - {class}`~adaptive.Learner2D`, for 2D functions `f: ℝ^2 → ℝ^N`,
 - {class}`~adaptive.LearnerND`, for ND functions `f: ℝ^N → ℝ^M`,