Revert escaped double dash man page flag syntax

Commit 800a2e2 introduced a way to disable the conversion of `--`into
an en dash on docs.podman.io, so the ugly workaround of escaping the
dashes is no longer necessary.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>

docs/source/markdown/podman-attach.1.md

@@ -14,24 +14,24 @@ or name, either to view its ongoing output or to control it interactively.
 
 You can detach from the container (and leave it running) using a configurable key sequence. The default
 sequence is `ctrl-p,ctrl-q`.
-Configure the keys sequence using the **\-\-detach-keys** option, or specifying
+Configure the keys sequence using the **--detach-keys** option, or specifying
 it in the **containers.conf** file: see **containers.conf(5)** for more information.
 
 ## OPTIONS
-#### **\-\-detach-keys**=*sequence*
+#### **--detach-keys**=*sequence*
 
 Specify the key sequence for detaching a container. Format is a single character `[a-Z]` or one or more `ctrl-<value>` characters where `<value>` is one of: `a-z`, `@`, `^`, `[`, `,` or `_`. Specifying "" will disable this feature. The default is *ctrl-p,ctrl-q*.
 
-#### **\-\-latest**, **-l**
+#### **--latest**, **-l**
 
 Instead of providing the container name or ID, use the last created container. If you use methods other than Podman
 to run containers such as CRI-O, the last started container could be from either of those methods. (This option is not available with the remote Podman client)
 
-#### **\-\-no-stdin**
+#### **--no-stdin**
 
 Do not attach STDIN. The default is false.
 
-#### **\-\-sig-proxy**=*true*|*false*
+#### **--sig-proxy**=*true*|*false*
 
 Proxy received signals to the process (non-TTY mode only). SIGCHLD, SIGSTOP, and SIGKILL are not proxied. The default is *true*.
 

docs/source/markdown/podman-auto-update.1.md

@@ -38,7 +38,7 @@ Podman ships with a `podman-auto-update.service` systemd unit.  This unit is tri
 
 ## OPTIONS
 
-#### **\-\-authfile**=*path*
+#### **--authfile**=*path*
 
 Path of the authentication file. Default is ${XDG\_RUNTIME\_DIR}/containers/auth.json, which is set using `podman login`.
 If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using `docker login`.