fix: checks

docs/topics/practices.rst

@@ -113,8 +113,7 @@ reactor after ``MySpider`` has finished running.
     reactor.run()  # the script will block here until the crawling is finished
 
 Same example but using a non-default reactor, it's only necessary call
-``install_reactor`` if you are using ``CrawlerRunner`` since ``CrawlerProcess``
- already does this automatically.
+``install_reactor`` if you are using ``CrawlerRunner`` since ``CrawlerProcess`` already does this automatically.
 
 .. code-block:: python