Add customization for the subplots example

[iuryt]

Create a new example for Composing Plots with some customization.

@ahuang11 , I couldn't find a way to remove the boldface or change the fontsize for the table.

Closes #1370

[ahuang11]

Thanks for contributing!

The pre-commit is failing; I think you need to pre-commit install && pre-commit run --all to fix.

+++ b/doc/user_guide/Plotting_with_Matplotlib.ipynb
@@ -719,22 +719,9 @@
   }
  ],
  "metadata": {
-  "kernelspec": {
-   "display_name": "coringa",
-   "language": "python",
-   "name": "coringa"
-  },
   "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
    "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.15"
+   "pygments_lexer": "ipython3"
   }
  },

I'd also like to see a mention and link in https://hvplot.holoviz.org/user_guide/Customization.html about opts.

[iuryt]

Thanks!
I think it should work now with the pre-commit run. I will add what we discussed to https://hvplot.holoviz.org/user_guide/Customization.html

I just wanted to start the PR.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.58%. Comparing base (6c96c7e) to head (d1b3168).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1371      +/-   ##
==========================================
+ Coverage   87.39%   88.58%   +1.18%     
==========================================
  Files          50       50              
  Lines        7490     7391      -99     
==========================================
+ Hits         6546     6547       +1     
+ Misses        944      844     -100     

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[ahuang11]

Thanks! The pre-commit looks good now.