Fix README.md instruction for bash completions
According to , the completion file should reside in the `completions` subdir.
@@ -199,7 +199,7 @@ If you'd like to make use of the built-in shell completion support, you need to
few examples with common paths are provided below:
# For bash
- miniserve --print-completions bash > ~/.local/share/bash-completion/miniserve
+ miniserve --print-completions bash > ~/.local/share/bash-completion/completions/miniserve
# For zsh
miniserve --print-completions zsh > /usr/local/share/zsh/site-functions/_miniserve
# For fish
