philadelphia-client: Update Markdown syntax in documentation
@@ -7,24 +7,32 @@ with a FIX acceptor.
Run Philadelphia Terminal Client with Java:
+```
java -jar philadelphia-client.jar <configuration-file>
+```
When started, the terminal client displays a command prompt:
+```
Type 'help' for help.
>
+```
You can interact with the terminal client by entering commands into the
command prompt. For example, to send a message, use the `send` command:
+```
> send 35=A|98=0|108=30|553=foo|554=bar
+```
The terminal client automatically generates the message header apart from
MsgType(35) as well as the message trailer.
To list received messages, use the `messages` command:
+```
> messages
+```
Use the `help` command to see a list of all available commands.
