Add new parameter description in ispathvalid (#637)

* add new parameter description in ispathvalid

Signed-off-by: Maurice-1235 <mauricepurnawan@gmail.com>

* Input ports for ispathvalid

Signed-off-by: Maurice-1235 <mauricepurnawan@gmail.com>

* Change description

Signed-off-by: Maurice-1235 <mauricepurnawan@gmail.com>

---------

Signed-off-by: Maurice-1235 <mauricepurnawan@gmail.com>

Author: mini-1235

configuration/packages/bt-plugins/conditions/IsPathValid.rst

@@ -5,11 +5,59 @@ IsPathValid
 
 Checks to see if the global path is valid. If there is a
 obstacle along the path, the condition returns FAILURE, otherwise
-it returns SUCCESS. 
+it returns SUCCESS.
+
+Input Ports
+-----------
+
+:service_timeout:
+
+  ====== =======
+  Type   Default
+  ------ -------
+  double 20.0
+  ====== =======
+
+  Description
+    Service response timeout (ms).
+
+:path:
+
+  ==================================== =======
+  Type                                 Default
+  ------------------------------------ -------
+  nav_msgs::msg::Path                  N/A  
+  ==================================== =======
+
+  Description
+    The global path to check for validity.
+
+:max_cost:
+
+  ============== ==========
+  Type           Default
+  -------------- ----------
+  unsigned int   253
+  ============== ==========
+
+  Description
+    The maximum allowable cost for the path to be considered valid.
+
+:consider_unknown_as_obstacle:
+
+  ====== =======
+  Type   Default
+  ------ -------
+  bool   false  
+  ====== =======
+
+  Description
+    Whether to consider unknown cost (255) as obstacle.
+
 
 Example
 -------
 
 .. code-block:: xml
 
-    <IsPathValid server_timeout="10" path="{path}"/>
+    <IsPathValid server_timeout="10" path="{path}" max_cost="100" consider_unknown_as_obstacle="false" />