diff -r 87802cb25a0f -r 2789bdd1a950 docs/overview.txt
--- a/docs/overview.txt	Fri Jun 27 13:58:53 2008 +0000
+++ b/docs/overview.txt	Fri Jun 27 14:55:22 2008 +0000
@@ -550,12 +550,20 @@
    *not* depend on any other config option (EXPERIMENTAL is managed as above).
      Eg.:
        config ARCH_arm
+   + mandatory:
+       defines an (terse) help entry for this architecture:
+       Eg.:
+         config ARCH_arm
+           help
+             The ARM architecture.
    + optional:
        selects adequate associated config options.
        Eg.:
          config ARCH_arm
            select ARCH_SUPPORTS_BOTH_ENDIAN
            select ARCH_DEFAULT_LE
+           help
+             The ARM architecture.
 
  > other target-specific options, at your discretion. Note however that to
    avoid name-clashing, such options shall be prefixed with "ARCH_%arch%",