Fix references to haproxy-marathon-bridge in documentation

(It was called haproxy_marathon_bridge)

docs/docs/service-discovery-load-balancing.md

@@ -21,11 +21,11 @@ Port information for each running task can be queried via the
 at `<marathon host>:<port>/v2/tasks`
 
 ## Using HAProxy
-Marathon ships with a simple shell script called `haproxy_marathon_bridge` that turns the Marathon's REST API's list of running tasks into a config file for HAProxy, a lightweight TCP/HTTP proxy.
-To generate an HAProxy configuration from Marathon running at `localhost:8080`, use the `haproxy_marathon_bridge` script:
+Marathon ships with a simple shell script called `haproxy-marathon-bridge` that turns the Marathon's REST API's list of running tasks into a config file for HAProxy, a lightweight TCP/HTTP proxy.
+To generate an HAProxy configuration from Marathon running at `localhost:8080`, use the `haproxy-marathon-bridge` script:
 
 ``` console
-$ bin/haproxy_marathon_bridge localhost:8080 > haproxy.cfg
+$ ./bin/haproxy-marathon-bridge localhost:8080 > haproxy.cfg
 ```
 
 To reload the HAProxy configuration without interrupting existing connections:
@@ -38,19 +38,19 @@ The configuration script and reload could be triggered frequently by Cron, to
 keep track of topology changes. If a node goes away between reloads, HAProxy's
 health check will catch it and stop sending traffic to that node.
 
-To facilitate this setup, the `haproxy_marathon_bridge` script can be invoked in
+To facilitate this setup, the `haproxy-marathon-bridge` script can be invoked in
 an alternate way which installs the script itself, HAProxy and a cronjob that
 once a minute pings one of the Marathon servers specified and refreshes
 HAProxy if anything has changed.
 
 ``` console
-$ install_haproxy_system localhost:8080
+$ ./bin/haproxy-marathon-bridge install_haproxy_system localhost:8080
 ```
 
 - The list of Marathons to ping is stored one per line in
   `/etc/haproxy_marathon_bridge/marathons`
-- The script is installed as `/usr/local/bin/haproxy_marathon_bridge`
-- The cronjob is installed as `/etc/cron.d/haproxy_marathon_bridge`
+- The script is installed as `/usr/local/bin/haproxy-marathon-bridge`
+- The cronjob is installed as `/etc/cron.d/haproxy-marathon-bridge`
   and run as root.
 
 The provided script is just a basic example. For a full list of options, check the