chore(docs): fix the GitHub markdown style checkboxes (#2437)

Signed-off-by: Keming <kemingy94@gmail.com>

Author: kemingy

docs/_newsfragments/2318.misc.rst

@@ -0,0 +1 @@
+Fix the checkbox rendering in the documentation to improve the readability.

docs/conf.py

@@ -99,6 +99,10 @@
 #   so we specify a print-friendly theme here for the likes of latexpdf.
 pygments_style = 'bw'
 
+# myst configuration
+myst_enable_extensions = ["tasklist"]
+myst_enable_checkboxes = True
+
 # Intersphinx configuration
 intersphinx_mapping = {'python': ('https://docs.python.org/3', None)}