add Float support

- in lib/
- in test/
- in README

1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index a12491d..f5338dc 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,7 @@ Built in Option types are as follows:
 o.string  #=> Slop::StringOption, expects an argument
 o.bool    #=> Slop::BoolOption, no argument, aliased to BooleanOption
 o.integer #=> Slop::IntegerOption, expects an argument, aliased to IntOption
+o.float   #=> Slop::FloatOption, expects an argument
 o.array   #=> Slop::ArrayOption, expects an argument
 o.null    #=> Slop::NullOption, no argument and ignored from `to_hash`
 o.on      #=> alias for o.null