Bump to PyGMT v0.4.0 (#23)

* Bump to PyGMT v0.4.0

* Update README.md

* Bump jupyterlab from 3.0.7 to 3.0.16

Co-authored-by: Wei Ji <[email protected]>

Author: Meghan Jones

README.md

@@ -20,7 +20,7 @@ You can run it online by click one of the badges below:
 
 - **GMT**: 6.2.0
 - **Python**: 3.9
-- **PyGMT**: 0.3.1
+- **PyGMT**: 0.4.0
 - **Julia**: 1.6
 - **GMT.jl**: 0.32.0
 

environment.yml

@@ -5,6 +5,6 @@ channels:
 dependencies:
   - python=3.9
   - gmt=6.2.0
-  - pygmt=0.3.1
-  - jupyterlab=3.0.7
+  - pygmt=0.4.0
+  - jupyterlab=3.0.16
   - jupyter-offlinenotebook=0.2.1