docs: fix markdown lint issues in command docs

cmd/genautocomplete/genautocomplete.go

@@ -14,8 +14,7 @@ var completionDefinition = &cobra.Command{
 	Use:   "completion [shell]",
 	Short: `Output completion script for a given shell.`,
 	Long: `Generates a shell completion script for rclone.
-Run with ` + "`--help`" + ` to list the supported shells.
-`,
+Run with ` + "`--help`" + ` to list the supported shells.`,
 	Annotations: map[string]string{
 		"versionIntroduced": "v1.33",
 	},

cmd/genautocomplete/genautocomplete_bash.go

@@ -18,17 +18,21 @@ var bashCommandDefinition = &cobra.Command{
 	Short: `Output bash completion script for rclone.`,
 	Long: `Generates a bash shell autocompletion script for rclone.
 
-By default, when run without any arguments, 
+By default, when run without any arguments,
 
-    rclone completion bash
+` + "```sh" + `
+rclone completion bash
+` + "```" + `
 
 the generated script will be written to
 
-    /etc/bash_completion.d/rclone
+` + "```sh" + `
+/etc/bash_completion.d/rclone
+` + "```" + `
 
 and so rclone will probably need to be run as root, or with sudo.
 
-If you supply a path to a file as the command line argument, then 
+If you supply a path to a file as the command line argument, then
 the generated script will be written to that file, in which case
 you should not need root privileges.
 
@@ -39,11 +43,12 @@ can logout and login again to use the autocompletion script.
 
 Alternatively, you can source the script directly
 
-    . /path/to/my_bash_completion_scripts/rclone
+` + "```sh" + `
+. /path/to/my_bash_completion_scripts/rclone
+` + "```" + `
 
 and the autocompletion functionality will be added to your
-current shell.
-`,
+current shell.`,
 	Run: func(command *cobra.Command, args []string) {
 		cmd.CheckArgs(0, 1, command, args)
 		out := "/etc/bash_completion.d/rclone"

cmd/genautocomplete/genautocomplete_fish.go

@@ -21,18 +21,21 @@ var fishCommandDefinition = &cobra.Command{
 This writes to /etc/fish/completions/rclone.fish by default so will
 probably need to be run with sudo or as root, e.g.
 
-    sudo rclone completion fish
+` + "```sh" + `
+sudo rclone completion fish
+` + "```" + `
 
 Logout and login again to use the autocompletion scripts, or source
 them directly
 
-    . /etc/fish/completions/rclone.fish
+` + "```sh" + `
+. /etc/fish/completions/rclone.fish
+` + "```" + `
 
 If you supply a command line argument the script will be written
 there.
 
-If output_file is "-", then the output will be written to stdout.
-`,
+If output_file is "-", then the output will be written to stdout.`,
 	Run: func(command *cobra.Command, args []string) {
 		cmd.CheckArgs(0, 1, command, args)
 		out := "/etc/fish/completions/rclone.fish"

cmd/genautocomplete/genautocomplete_powershell.go

@@ -20,13 +20,14 @@ var powershellCommandDefinition = &cobra.Command{
 
 To load completions in your current shell session:
 
-    rclone completion powershell | Out-String | Invoke-Expression
+` + "```sh" + `
+rclone completion powershell | Out-String | Invoke-Expression
+` + "```" + `
 
 To load completions for every new session, add the output of the above command
 to your powershell profile.
 
-If output_file is "-" or missing, then the output will be written to stdout.
-`,
+If output_file is "-" or missing, then the output will be written to stdout.`,
 	Run: func(command *cobra.Command, args []string) {
 		cmd.CheckArgs(0, 1, command, args)
 		if len(args) == 0 || (len(args) > 0 && args[0] == "-") {

cmd/genautocomplete/genautocomplete_zsh.go

@@ -21,18 +21,21 @@ var zshCommandDefinition = &cobra.Command{
 This writes to /usr/share/zsh/vendor-completions/_rclone by default so will
 probably need to be run with sudo or as root, e.g.
 
-    sudo rclone completion zsh
+` + "```sh" + `
+sudo rclone completion zsh
+` + "```" + `
 
 Logout and login again to use the autocompletion scripts, or source
 them directly
 
-    autoload -U compinit && compinit
+` + "```sh" + `
+autoload -U compinit && compinit
+` + "```" + `
 
 If you supply a command line argument the script will be written
 there.
 
-If output_file is "-", then the output will be written to stdout.
-`,
+If output_file is "-", then the output will be written to stdout.`,
 	Run: func(command *cobra.Command, args []string) {
 		cmd.CheckArgs(0, 1, command, args)
 		out := "/usr/share/zsh/vendor-completions/_rclone"