Merge pull request jupyter-book#12 from ExecutableBookProject/clijb

adding notebook runner to docs

.circleci/run_notebooks.py

@@ -1,10 +1,14 @@
 import nbformat as nbf
 from nbclient import NotebookClient
 from glob import glob
+from pathlib import Path
 
+ROOT = Path(__file__)
+DOCS = ROOT.absolute().parent.parent.joinpath('docs')
 expected_errors = ["features/notebooks.ipynb"]
-notebooks = glob("docs/content/**/*.ipynb", recursive=True)
+notebooks = DOCS.glob("**/*.ipynb")
 for path_ntbk in notebooks:
+    path_ntbk = str(path_ntbk)
     print(f"Executing {path_ntbk}")
     with open(path_ntbk) as ff:
         ntbk = nbf.read(ff, as_version=4)

setup.py

@@ -47,6 +47,7 @@
         "sphinx",
         "nbformat",
         "nbconvert",
+        "nbclient",
         "sphinx-togglebutton",
         "sphinx-copybutton",
         "sphinxcontrib-bibtex",