Reword some command directory READMEs (this tweaks menuconfig display).
diff --git a/toys/android/README b/toys/android/README
index d471a20..b1b627c 100644
--- a/toys/android/README
+++ b/toys/android/README
@@ -1,5 +1,6 @@
-Android
+Android commands
 
-Commands primarily used by Android, not vanilla Linux. (Also SELinux stuff.)
+Commands primarily used by Android, not present in vanilla Linux.
+(Mostly SELinux stuff.)
 
 Bug Elliott Hughes <enh@google.com> about this.
diff --git a/toys/net/README b/toys/net/README
index 8708e4b..49259ca 100644
--- a/toys/net/README
+++ b/toys/net/README
@@ -1 +1,6 @@
-Networking
+Networking commands
+
+The Internet Engineering Task Force publishes standards drafts at
+https://www.ietf.org/rfc/rfc-index.txt (ala https://www.ietf.org/rfc/rfc3.txt)
+and the commands tend to be documented in manual page section 8
+https://man7.org/linux/man-pages/dir_section_8.html
diff --git a/toys/pending/README b/toys/pending/README
index 2eb83e1..de44b02 100644
--- a/toys/pending/README
+++ b/toys/pending/README
@@ -1,4 +1,4 @@
-pending (see toys/pending/README)
+Pending (unfinished) commands
 
 Commands in this directory are external submissions awaiting review and/or
 cleanup before being "promoted" to one of the other directories.