From 03ced02507c19b17ea3763ce3d9ceada8090ab47 Mon Sep 17 00:00:00 2001
From: Tetsuo Koyama <tkoyama010@gmail.com>
Date: Sat, 11 Jul 2020 14:47:03 +0900
Subject: [PATCH 1/3] :up: jupyter notebook to jupyterlab

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 594ac9f1..907d42ad 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ In all cases, learners should follow along the worked examples in each lesson by
 Lessons
 -------
 > Launch an interactive session with this module using the Binder service:
-[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/barbagroup/CFDPython/master)
+[![Binder](https://mybinder.org/badge.svg)](https://mybinder.org/v2/gh/barbagroup/CFDPython/master?urlpath=lab)
 
 Steps 1–4 are in one spatial dimension. Steps 5–10 are in two dimensions (2D). Steps 11–12 solve the Navier-Stokes equation in 2D. Three "bonus" notebooks cover the CFL condition for numerical stability, array operations with NumPy, and defining functions in Python.
 

From 6d3ed769e9097908c6405a020341e82885327fdf Mon Sep 17 00:00:00 2001
From: Tetsuo Koyama <tkoyama010@gmail.com>
Date: Sat, 11 Jul 2020 14:54:29 +0900
Subject: [PATCH 2/3] GitHub bot to show mybinder badge of branch in PR

---
 .github/workflows/binder.yml | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 .github/workflows/binder.yml

diff --git a/.github/workflows/binder.yml b/.github/workflows/binder.yml
new file mode 100644
index 00000000..8370fc9a
--- /dev/null
+++ b/.github/workflows/binder.yml
@@ -0,0 +1,29 @@
+name: Binder
+on: 
+  pull_request:
+    types: [opened, reopened]
+
+jobs:
+  Create-Binder-Badge:
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: checkout pull request branch
+      uses: actions/checkout@v2
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+
+    - name: comment on PR with Binder link
+      uses: actions/github-script@v1
+      with:
+        github-token: ${{secrets.GITHUB_TOKEN}}
+        script: |
+          var BRANCH_NAME = process.env.BRANCH_NAME;
+          github.issues.createComment({
+            issue_number: context.issue.number,
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            body: `[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/${context.repo.owner}/${context.repo.repo}/${BRANCH_NAME}?urlpath=lab) :point_left: Launch a binder notebook on this branch`
+          }) 
+      env:
+        BRANCH_NAME: ${{ github.event.pull_request.head.ref }}

From a28e340a7ef726469a574e13c73aed0b807c7108 Mon Sep 17 00:00:00 2001
From: Tetsuo Koyama <tkoyama010@gmail.com>
Date: Sat, 11 Jul 2020 15:07:54 +0900
Subject: [PATCH 3/3] Running the notebook server by Jupyter lab

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 907d42ad..31088504 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,12 @@ Once Jupyter is installed, open up a terminal and then run
 jupyter notebook
 ```
 
+or if you want to run JupyterLab 
+
+```Bash
+jupyter lab
+```
+
 This will start up a Jupyter session in your browser!
 
 ## How to contribute to CFD Python