Fix typo in README.md

Signed-off-by: Matteo Danelon
<[email protected]>
Signed-off-by: Matteo Danelon <[email protected]>

Author: DaruZero

README.md

@@ -4,7 +4,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/helm/chart-testing)](https://goreportcard.com/report/github.com/helm/chart-testing)
 ![ci](https://github.com/helm/chart-testing/workflows/ci/badge.svg)
 
-`ct` is the the tool for testing Helm charts.
+`ct` is the tool for testing Helm charts.
 It is meant to be used for linting and testing pull requests.
 It automatically detects charts changed against the target branch.