TBR docs: fix tos link

Change-Id: I2e7f74bea8e8704e1e918f86e225279b18d9f67b
diff --git a/tos.md b/tos.md
index 44be18e..d3309de 100644
--- a/tos.md
+++ b/tos.md
@@ -1,7 +1,7 @@
 # Terms of Service
 
 The Vanadium website (the "Website") and [Vanadium Cloud
-Services][tools/services.md] (the "Services") are hosted by Google. By using
+Services](tools/services.md) (the "Services") are hosted by Google. By using
 and/or visiting the Website and/or Services, you consent to be bound by Google's
 general [Terms of Service], the [Google APIs Terms of Service], and Google's
 general [Privacy Policy].