Update readme.md (#20)

tiny typo in requirements

readme.md

diff --git a/readme.md b/readme.md
index c756fdf..df0eda7 100644
--- a/readme.md
+++ b/readme.md
@@ -116,7 +116,7 @@
 
 ```starlark
 # in a BUILD file
-load("@pip//:requirements.bzl", "requirements") # '@pip' must match configured pip hub_name
+load("@pip//:requirements.bzl", "requirement") # '@pip' must match configured pip hub_name
 load("@rules_mypy//mypy:mypy.bzl", "mypy", "mypy_cli")
 
 mypy_cli(