pages*: fix Bash, Zsh and fish names (#12481)

pages/linux/arch-chroot.md

@@ -3,7 +3,7 @@
 > Enhanced `chroot` command to help in the Arch Linux installation process.
 > More information: <https://man.archlinux.org/man/arch-chroot.8>.
 
-- Start an interactive shell (`bash`, by default) in a new root directory:
+- Start an interactive shell (Bash, by default) in a new root directory:
 
 `arch-chroot {{path/to/new/root}}`
 
@@ -11,10 +11,10 @@
 
 `arch-chroot -u {{user}} {{path/to/new/root}}`
 
-- Run a custom command (instead of the default `bash`) in the new root directory:
+- Run a custom command (instead of the default Bash) in the new root directory:
 
 `arch-chroot {{path/to/new/root}} {{command}} {{command_arguments}}`
 
-- Specify the shell, other than the default `bash` (in this case, the `zsh` package should have been installed in the target system):
+- Specify the shell, other than the default Bash (in this case, the `zsh` package should have been installed in the target system):
 
 `arch-chroot {{path/to/new/root}} {{zsh}}`

pages/linux/faketime.md

@@ -7,7 +7,7 @@
 
 `faketime '{{today 23:30}}' {{date}}`
 
-- Open a new `bash` shell, which uses yesterday as the current date:
+- Open a new Bash shell, which uses yesterday as the current date:
 
 `faketime '{{yesterday}}' {{bash}}`