Fix long option format on docs.podman.io

Escape the two dashes, otherwise they are combined into one long dash.
I tested that this change is safe and still renders correctly on github
and with the man pages.

This commit also contains a small change to make it build locally.
Assuming you have the dependencies installed you can do:
```
cd docs
make html
```
Preview the html files in docs/build/html with
`python -m http.server 8000 --directory build/html`.

Fixes containers/podman.io#373

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

1 files changed, 4 insertions, 4 deletions

diff --git a/docs/source/markdown/podman-wait.1.md b/docs/source/markdown/podman-wait.1.md
index fac017fe6..3697cc94a 100644
--- a/docs/source/markdown/podman-wait.1.md
+++ b/docs/source/markdown/podman-wait.1.md
@@ -16,17 +16,17 @@ separated by newline in the same order as they were given to the command.
 
 ## OPTIONS
 
-#### **--condition**=*state*
+#### **\-\-condition**=*state*
 Condition to wait on (default "stopped")
 
-#### **--help**, **-h**
+#### **\-\-help**, **-h**
 
  Print usage statement
 
-#### **--interval**, **-i**=*duration*
+#### **\-\-interval**, **-i**=*duration*
   Time interval to wait before polling for completion. A duration string is a sequence of decimal numbers, each with optional fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". Time unit defaults to "ms".
 
-#### **--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)