Update README.md

BhuvnendraPratapSingh · web-flow · commit 29443d261dc6 · 2020-10-01T01:13:59.000+05:30
diff --git a/README.md b/README.md
@@ -33,7 +33,7 @@ And then execute:
 $ bundle
 ```
 
-Or install it yourself as:
+Or install it by yourself as:
 
 ```sh
 $ gem install html-pipeline
