Update README.md

pydeveloper510 · web-flow · commit 22910bc283fa · 2022-02-27T20:27:36.000+08:00
diff --git a/README.md b/README.md
@@ -336,6 +336,7 @@ scrapy starproject projectname
 scrapy genspider spidername url
 scrapy crawl spidername
 ```
+https://docs.scrapy.org/en/latest/topics/selectors.html
 
 
 
