added a README

tools/munin-plugins-busybox/README

@@ -0,0 +1,30 @@
+What is this?
+~~~~~~~~~~~~~
+This is a rewrite of commonly used plugins in C as a single binary. The
+purpose is reducing resource usage:
+ * disk space: the binary is smaler than the plugins together
+ * more diskspace: it has no dependencies on other programs
+ * less forks: it does not fork internally
+ * faster startup: it doesn't start perl or shell
+ * less memory: just a small C program
+ * less file accesses: one binary for many plugins
+This can be useful for machines with restricted resources like embedded
+machines.
+
+What plugins are included?
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+cpu entropy forks fw_packets interrupts load open_files open_inodes
+processes swap uptime
+
+How to use?
+~~~~~~~~~~~
+After compiling there will be binary munin-plugins-busybox. You can just
+replace symlinks in /etc/munin/plugins/ with symlinks to this binary.
+
+License?
+~~~~~~~~
+(C) 2008 Helmut Grohne <helmut@subdivi.de>
+GPLv3 applies to *.c *.h and Makefile
+
+# vim7:spelllang=en
+# vim:textwidth=75