Update README.rst
diff --git a/README.rst b/README.rst
index 8a59d6d3ba..2c68568ebc 100644
--- a/README.rst
+++ b/README.rst
@@ -895,7 +895,7 @@ Colors and Formatting
 ---------------------
 
 Syntax highlighting is applied to HTTP headers and bodies (where it makes
-sense). You can choose your prefered color scheme via the ``--style`` option
+sense). You can choose your preferred color scheme via the ``--style`` option
 if you don't like the default one (see ``$ http --help`` for the possible
 values).
 

Fix a simple typo
