Merge pull request #21142 from dvdksn/buildsecret-fix-typo

build: fix typo in build secrets

Author: dvdksn

content/manuals/build/building/secrets.md

@@ -107,7 +107,7 @@ $ docker build --secret id=API_TOKEN .
 
 ### Target
 
-When consuming a secret in a Dockerfile, the secret is mounted a file by
+When consuming a secret in a Dockerfile, the secret is mounted to a file by
 default. The default file path of the secret, inside the build container, is
 `/run/secrets/<id>`. You can customize how the secrets get mounted in the build
 container using the `target` and `env` options for the `RUN --mount` flag in