Skylark -> Starlark comment and doc updates

- Also a few string literals.

There's lots more, so I'm breaking this into chunks.

PiperOrigin-RevId: 305900457
diff --git a/src/BUILD b/src/BUILD
index 5758d38..42fe065 100644
--- a/src/BUILD
+++ b/src/BUILD
@@ -103,7 +103,7 @@
 ]
 
 # TODO(philwo): Clean this up, once a Bazel that can run py_binary and sh_binary
-# in Skylark rules on Windows has been released.
+# in Starlark rules on Windows has been released.
 [filegroup(
     name = "embedded_tools" + suffix + "_srcs",
     srcs = JAVA_TOOLS + [