docs: add npl fav/icon and update readme

Author: ngfelixl

README.md

@@ -1,4 +1,5 @@
-# NodePlotLib
+
+# <img src="./img/nodeplotlib_64x64.png" width="22px" height="22px"> NodePlotLib
 
 [![NodeJS CI](https://github.com/ngfelixl/nodeplotlib/workflows/Node.js%20CI/badge.svg)](https://github.com/ngfelixl/nodeplotlib/actions?query=workflow%3A%22Node.js+CI%22)
 [![Coverage Status](https://coveralls.io/repos/github/ngfelixl/nodeplotlib/badge.svg?branch=master)](https://coveralls.io/github/ngfelixl/nodeplotlib?branch=master)
@@ -7,6 +8,7 @@
 [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
 [![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/nodeplotlib/)
 
+
 This readme contains all the necessary information for the development.
 
 ## [Go to the user docs](./libs/nodeplotlib/README.md)

apps/web/src/assets/nodeplotlib_64x64_transparent.png

@@ -1,4 +1,6 @@
-# NodePlotLib
+
+
+# <img src="../../img/nodeplotlib_64x64.png" width="28px" height="28px"> NodePlotLib
 
 [![NodeJS CI](https://github.com/ngfelixl/nodeplotlib/workflows/Node.js%20CI/badge.svg)](https://github.com/ngfelixl/nodeplotlib/actions?query=workflow%3A%22Node.js+CI%22)
 [![Coverage Status](https://coveralls.io/repos/github/ngfelixl/nodeplotlib/badge.svg?branch=master)](https://coveralls.io/github/ngfelixl/nodeplotlib?branch=master)