Fix copy/paste issue

Change-Id: I6cfd012e36eda71856c1cc0dc7bef3dc2abbc6db
Reviewed-on: https://pigweed-review.googlesource.com/c/infra/config/+/78620
Pigweed-Auto-Submit: Rob Mohr <mohrr@google.com>
Reviewed-by: Anthony DiGirolamo <tonymd@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/README.md b/README.md
index 1983006..581581c 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,4 @@
 
 This repository contains configs for Pigweed. The source of truth for these
 configs is the corresponding [internal
-repository](https://https://pigweed-internal.git.corp.google.com/infra/config).
+repository](https://pigweed-internal.git.corp.google.com/infra/config).