readme extended

Steve/docs/node_example_paramsConfig-usage.dox

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+\subsubsection usage Usage
+\verbatim
+<node name="node_example" pkg="Steve" type="node_example">
+  <param name="message" type="str" value="hello" />
+  <param name="a" type="int" value="1" />
+  <param name="b" type="int" value="2" />
+</node>
+\endverbatim
+

Steve/docs/node_example_paramsConfig.dox

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+\subsubsection parameters ROS parameters
+
+Reads and maintains the following parameters on the ROS server
+
+- \b "~message" : \b [str] The message. min: , default: hello, max: 
+- \b "~a" : \b [int] First number. min: -100, default: 1, max: 100
+- \b "~b" : \b [int] First number. min: -100, default: 2, max: 100
+

Steve/docs/node_example_paramsConfig.wikidoc

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+# Autogenerated param section. Do not hand edit.
+            param {
+            group.0 {
+            name=Dynamically Reconfigurable Parameters
+            desc=See the [[dynamic_reconfigure]] package for details on dynamically reconfigurable parameters.
+0.name= ~message
+                  0.default= hello
+                  0.type= str
+                  0.desc=The message. 
+1.name= ~a
+                  1.default= 1
+                  1.type= int
+                  1.desc=First number. Range: -100 to 100
+2.name= ~b
+                  2.default= 2
+                  2.type= int
+                  2.desc=First number. Range: -100 to 100
+}
+}
+# End of autogenerated section. You may edit below.