Add badges and fix links

README.md

@@ -1,5 +1,7 @@
 # Flake8-pyspark-with-column
 
+[![Upload Python Package](https://github.com/SemyonSinchenko/flake8-pyspark-with-column/actions/workflows/python-publish.yml/badge.svg)](https://github.com/SemyonSinchenko/flake8-pyspark-with-column/actions/workflows/python-publish.yml) ![PyPI - Downloads](https://img.shields.io/pypi/dm/flake8-pyspark-with-column)
+
 ## Getting started
 
 ```sh
@@ -32,11 +34,17 @@ When you run a PySpark application the following happens:
 2. Spark do analysis of this plan to create an `Analyzed Logical Plan`
 3. Spark apply optimization rules to create an `Optimized Logical Plan`
 
-![spark-flow](https://www.databricks.com/wp-content/uploads/2018/05/Catalyst-Optimizer-diagram.png)
+<p align="center">
+  <img src="https://www.databricks.com/wp-content/uploads/2018/05/Catalyst-Optimizer-diagram.png" alt="spark-flow" width="800" align="middle"/>
+</p>
 
 What is the problem with `withColumn`? It creates a single node in the unresolved plan. So, calling `withColumn` 500 times will create an unresolved plan with 500 nodes. During the analysis Spark should visit each node to check that column exists and has a right data type. After that Spark will start applying rules, but rules are applyed once per plan recursively, so concatenation of 500 calls to `withColumn` will require 500 applies of the corresponding rule. All of that may significantly increase the amount of time from `Unresolved Logical Plan` to `Optimized Logical Plan`:
 
-![bechmark](/static/with_column_performance.png)
+<p align="center">
+  <img src="https://raw.githubusercontent.com/SemyonSinchenko/flake8-pyspark-with-column/refs/heads/main/static/with_column_performance.png" alt="bechmark" width="600" align="middle"/>
+</p>
+
+From the other side, both `withColumns` and `select(*cols)` create only one node in the plan doesn't matter how many columns we want to add.
 
 ## Rules
 This plugin contains the following rules:
@@ -77,4 +85,6 @@ def cast_to_double(df: DataFrame) -> DataFrame:
 
 `flake8 %your-code-here%`
 
-![screenshot of how it works](/static/usage.png)
+<p align="center">
+  <img src="https://raw.githubusercontent.com/SemyonSinchenko/flake8-pyspark-with-column/refs/heads/main/static/usage.png" alt="screenshot of how it works" width="800" align="middle"/>
+</p>