EarthScope 2023 short cource update (#56)

+ create `workflows` folders for `smallbaselineApp*.ipynb` files and its auxliary files, for simplicity and independence

+ 2023 EarthScope update:
   - update course info: date/links, etc.
   - replace utils.ipynb with utils.py, to avoid the dependency of `ipynb` package
   - docs/requirements.txt: remove ipynb as it's not needed anymore due to the above change
   - add workflows/data/UCERF3_Fault.lonlat and plot faults on top of velocity maps
   - add move notebook related image files from docs/ to workflows/docs/
   - simplify the phase anatomy description
   - add temp coh and spatial coh question selection box
   - light re-arrangement of equations for closure phase bias.

+ README: update square badge style, to be consistent with mintpy

+ LICENSE: switch from GPLv3 to GPLv3+, to be consistent with mintpy

.gitignore

@@ -2,3 +2,8 @@
 *.ipynb_checkpoints*
 *isce.log
 *dev
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class

README.md

@@ -1,9 +1,9 @@
 # MintPy-tutorial
 
-[![Language](https://img.shields.io/badge/python-3.6%2B-blue.svg)](https://www.python.org/)
-[![License](https://img.shields.io/badge/license-GPLv3-yellow.svg)](https://github.com/insarlab/MintPy-tutorial/blob/main/LICENSE)
-[![render](https://img.shields.io/badge/render-nbviewer-orange.svg)](https://nbviewer.jupyter.org/github/insarlab/MintPy-tutorial/tree/main/)
-[![Citation](https://img.shields.io/badge/doi-10.1016%2Fj.cageo.2019.104331-blue)](https://doi.org/10.1016/j.cageo.2019.104331)
+[![Language](https://img.shields.io/badge/python-3.6%2B-blue.svg?style=flat-square)](https://www.python.org/)
+[![License](https://img.shields.io/badge/license-GPLv3+-yellow.svg?style=flat-square)](https://github.com/insarlab/MintPy-tutorial/blob/main/LICENSE)
+[![render](https://img.shields.io/badge/render-nbviewer-orange.svg?style=flat-square)](https://nbviewer.jupyter.org/github/insarlab/MintPy-tutorial/tree/main/)
+[![Citation](https://img.shields.io/badge/doi-10.1016%2Fj.cageo.2019.104331-blue?style=flat-square)](https://doi.org/10.1016/j.cageo.2019.104331)
 
 MintPy-tutorials contains the documentations for the [MintPy repo](https://github.com/insarlab/MintPy), mainly in Jupyter Notebook.
 
@@ -13,8 +13,8 @@ MintPy-tutorials contains the documentations for the [MintPy repo](https://githu
 
 This notebook walks through the various processing steps of InSAR time series analysis using MintPy.     
 
-   - ARIA + MintPy (Sentinel-1 on San Francisco Bay, California): [nbviewer](https://nbviewer.jupyter.org/github/insarlab/MintPy-tutorial/blob/main/smallbaselineApp_aria.ipynb)
-       - [UNAVCO short course](https://www.unavco.org/event/2022-short-course-insar-processing-analysis-isce/) recordings on YouTube: [2019](https://youtu.be/lRFDSsi8ZcY?t=10933), [2020](https://youtu.be/BVdVylW_vVQ), [2021](https://youtu.be/vtJpM54KbKs?t=3117), [2022](https://youtu.be/QQxIY4gFHbI?t=4466)
+   - ARIA + MintPy (Sentinel-1 on San Francisco Bay, California): [nbviewer](https://nbviewer.jupyter.org/github/insarlab/MintPy-tutorial/blob/main/workflows/smallbaselineApp_aria.ipynb)
+       - [UNAVCO / EarthScope short course](https://www.earthscope.org/event/2023-insar-isce-short-course/) recordings on YouTube: [2019](https://youtu.be/lRFDSsi8ZcY?t=10933), [2020](https://youtu.be/BVdVylW_vVQ), [2021](https://youtu.be/vtJpM54KbKs?t=3117), [2022](https://youtu.be/QQxIY4gFHbI?t=4466), [2023](https://youtu.be/Qyj1-UMMWWc?si=BHwx8Llxv2_MtYYP&t=3458)
 
 #### 2. Visualizations   
 

docs/requirements.txt

@@ -1,6 +1,5 @@
 gdal
 h5py
-ipynb
 matplotlib
 mintpy
 numpy