Rename workflow, add badge

Author: ehrenfeu

.github/workflows/lint.yml

@@ -1,4 +1,4 @@
-name: 🔎 Lint code ⚡
+name: 🔎 Code Linting ⚡
 
 on:
   push:

README.md

@@ -2,6 +2,7 @@
 # IMCFlibs 🐍 ☕ 🔩 🔧 🪛
 
 [![Build Status](https://github.com/imcf/python-imcflibs/actions/workflows/build.yml/badge.svg)][build]
+[![Linting ⚡](https://github.com/imcf/python-imcflibs/actions/workflows/lint.yml/badge.svg)](https://github.com/imcf/python-imcflibs/actions/workflows/lint.yml)
 [![DOI](https://zenodo.org/badge/156891364.svg)][doi]
 
 This package contains a diverse collection of Python functions dealing with