update readme

Author: ellerbrock

readme.md

@@ -2,7 +2,7 @@
 
 # bash-it-docker
 
-_Bash Shell v.4.4 with [Bash-it](https://github.com/Bash-it/bash-it), [bats](https://github.com/sstephenson/bats) and [bash-completion](https://github.com/scop/bash-completion) based on [Alpine Linux](https://alpinelinux.org/) as unprivileged User_
+_Bash Shell v.5 with [Bash-it](https://github.com/Bash-it/bash-it), [bats](https://github.com/sstephenson/bats) and [bash-completion](https://github.com/scop/bash-completion) based on [Alpine Linux](https://alpinelinux.org/) as unprivileged User_
 
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