Doc updates

lib/kamal/configuration/docs/builder.yml

@@ -2,10 +2,6 @@
 #
 # The builder configuration controls how the application is built with `docker build`
 #
-# If no configuration is specified, Kamal will:
-# 1. Create a buildx context called `kamal-local-docker-container`, using the docker-container driver
-# 2. Use `docker build` to build a multiarch image for linux/amd64,linux/arm64 with that context
-#
 # See https://kamal-deploy.org/docs/configuration/builder-examples/ for more information
 
 # Builder options
@@ -78,7 +74,7 @@ builder:
 
   # Build secrets
   #
-  # Values are read from the .kamal/secrets.
+  # Values are read from .kamal/secrets.
   #
   secrets:
     - SECRET1