Update bzl-style.md

Conventionally, `name` should be the first argument when defining a macro.

site/en/rules/bzl-style.md

@@ -154,6 +154,7 @@ not instantiated by that macro), follow these best practices:
     a dependency or input file that is not generated by the macro itself.
 *   All the targets created in the macro should be coupled in some way to the
     main target.
+*   Conventionally, `name` should be the first argument when defining a macro.
 *   Keep the parameter names in the macro consistent. If a parameter is passed
     as an attribute value to the main target, keep its name the same. If a macro
     parameter serves the same purpose as a common rule attribute, such as