Update README.md

README.md

@@ -192,12 +192,41 @@ You can use parameters in generate methods.
 
 1. `name`: name of the parameter
 2. `type`: type of the parameter (Int, String, Bool, Double)
+3. `value`: value of the parameter
+4. `defaultValue`: defaultValue of the parameter
 3. `replaceIn` *(optional)*
 
+**Value**
+
+If you want to send another parameter with a static value. For example, you want to send to which screen the event is triggered. 
+You can add the parameter 'screenName' for example and its 'value' is 'Home'. With this, you do not need to specify the value in the function call.
+
+**DefaultValue**
+
+If you want ta add a parameter in the call of the function but you want to make it optionnal with a default value you need to use this property.
+
+Example:  
+```
+events:
+  id: id_of_tag
+  name: _TITLE_
+  tags: ios,droid
+  parameters:
+    - name: title
+      type: String
+      defaultValue: someTitle
+```
+
+The generated method will be:  
+```
+logIdOfTag(title: String = "someTitle")
+```
+
 **Replace in**
 
 This is section is equivalent of `%s | %d | %f | %@`. You can put the content of the parameter in *name*, *path*, *action*, *category*.
-You need to put `_` + `NAME OF THE PARAMETER` + `_` in the target and which target you want in the value of `replaceIn`. (name need to be in uppercase)
+You need to put `_` + `NAME OF THE PARAMETER` + `_` in the target and which target you want in the value of `replaceIn`. (name need to be in uppercase).
+You can't use `value`and `replaceIn`in thge same time.
 
 Example:  
 ```
@@ -218,6 +247,23 @@ The generated method will be:
 logIdOfTag(title: String)
 ```
 
+You can also want to replace a parameter in an other parameter. You can do this with the `replaceIn` property. The condition is that the parameter which will use the `replaceIn`need to have the `value`property
+
+Example:  
+```
+events:
+  id: id_of_tag
+  name: title
+  tags: ios,droid
+  parameters:
+    - name: something
+      type: String
+      value: test _TEXT_
+    - name: text
+      type: String
+      replaceIn: something
+```
+
 ## Images
 
 Images generator will generate images assets along with extensions to access those images easily.