Catch a silly typo

Author: ckormanyos

README.md

@@ -6,7 +6,7 @@
 | Github Actions   | [![CI](https://github.com/cppalliance/decimal/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/cppalliance/decimal/actions/workflows/ci.yml) | [![CI](https://github.com/cppalliance/decimal/actions/workflows/ci.yml/badge.svg?branch=develop)](https://github.com/cppalliance/decimal/actions/workflows/ci.yml)
 | Codecov          | [![codecov](https://codecov.io/gh/cppalliance/decimal/branch/master/graph/badge.svg?token=drvY8nnV5S)](https://codecov.io/gh/cppalliance/decimal)                 | [![codecov](https://codecov.io/gh/cppalliance/decimal/graph/badge.svg?token=drvY8nnV5S)](https://codecov.io/gh/cppalliance/decimal) |
 | Fuzzing          | [![Fuzzing](https://github.com/cppalliance/decimal/actions/workflows/fuzz.yml/badge.svg?branch=master)](https://github.com/cppalliance/decimal/actions/workflows/fuzz.yml) | [![Fuzzing](https://github.com/cppalliance/decimal/actions/workflows/fuzz.yml/badge.svg?branch=develop)](https://github.com/cppalliance/decimal/actions/workflows/fuzz.yml) |
-| Metal            | [![Metal](https://github.com/cppalliance/decimal/actions/workflows/metal.yml/badge.svg?branch=master)](https://github.com/cppalliance/decimal/actions/workflows/metal.yml) | [![metal](https://github.com/cppalliance/decimal/actions/workflows/metal.yml/badge.svg?branch=develop)](https://github.com/cppalliance/decimal/actions/workflows/metal.yml) |
+| Metal            | [![Metal](https://github.com/cppalliance/decimal/actions/workflows/metal.yml/badge.svg?branch=master)](https://github.com/cppalliance/decimal/actions/workflows/metal.yml) | [![Metal](https://github.com/cppalliance/decimal/actions/workflows/metal.yml/badge.svg?branch=develop)](https://github.com/cppalliance/decimal/actions/workflows/metal.yml) |
 
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