[flyctl-bot] Update docs from flyctl (#2294)

Co-authored-by: docs-syncer[bot] <134718678+docs-syncer[bot]@users.noreply.github.com>

Author: docs-syncer[bot]

flyctl/cmd/fly_mpg_backup_create.md

@@ -2,7 +2,7 @@ Create a backup for a Managed Postgres cluster.
 
 ## Usage
 ~~~
-fly mpg backup create [CLUSTER_ID] [flags]
+fly mpg backup create <CLUSTER_ID> [flags]
 ~~~
 
 ## Options

flyctl/cmd/fly_mpg_backup_list.md

@@ -2,7 +2,7 @@ List backups for a Managed Postgres cluster.
 
 ## Usage
 ~~~
-fly mpg backup list [CLUSTER_ID] [flags]
+fly mpg backup list <CLUSTER_ID> [flags]
 ~~~
 
 ## Options

flyctl/cmd/fly_mpg_connect.md

@@ -2,13 +2,12 @@ Connect to a MPG database using psql
 
 ## Usage
 ~~~
-fly mpg connect [flags]
+fly mpg connect <CLUSTER ID> [flags]
 ~~~
 
 ## Options
 
 ~~~
-  -c, --cluster string    The target cluster ID
   -d, --database string   The database to connect to
   -h, --help              help for connect
 ~~~

flyctl/cmd/fly_mpg_proxy.md

@@ -2,16 +2,14 @@ Proxy to a MPG database
 
 ## Usage
 ~~~
-fly mpg proxy [flags]
+fly mpg proxy <CLUSTER ID> [flags]
 ~~~
 
 ## Options
 
 ~~~
   -b, --bind-addr string   Local address to bind to (default "127.0.0.1")
-  -c, --cluster string     The target cluster ID
   -h, --help               help for proxy
-  -r, --region string      The target region (see 'flyctl platform regions')
 ~~~
 
 ## Global Options

flyctl/cmd/fly_mpg_restore.md

@@ -2,7 +2,7 @@ Restore a Managed Postgres cluster from a backup.
 
 ## Usage
 ~~~
-fly mpg restore [CLUSTER_ID] [flags]
+fly mpg restore <CLUSTER_ID> [flags]
 ~~~
 
 ## Options