update the README.examples [t:1904]

git-svn-id: file:///svn/toku/tokudb@13641 c7de825b-a66e-492c-adef-691d508d4ae1

release/examples/README.examples

-put something here
\ No newline at end of file
+db-insert
+
+The db-insert directory contains a program that measures insertion performance
+into a Tokutek Fractal Tree. 
+