style: fix formatting, reword a sentence

Co-authored-by: Michał Olender <92638966+TC-MO@users.noreply.github.com>

Author: honzajavorek

sources/academy/webscraping/scraping_basics_python/03_devtools_extracting_data.md

@@ -65,7 +65,7 @@ price = subwoofer.querySelector('.price');
 price.textContent;
 ```
 
-It works, but the price isn't alone in the result. Before we'd use such data, we'd need to do some **data cleaning**:
+It works, but the price isn't alone in the result. Before using such data, we'd need to do some _data cleaning_:
 
 ![Extracting product price](./images/devtools-extracting-price.png)