Bump patch version and readme update

README.md

@@ -172,7 +172,7 @@ app.intent('CustomSlotIntent', 'My name is {name:Name}', (slots) => {
 
 ### Session Attributes
 
-Intent can be resolved using simple string (a text response) or more complex `responseObject`. Its attribute `attrs` will override current sessionAttributes. If you wish to extend current session attributes you can use for example `Object.assign` method. Make sure you set `end` attribute to `false` to keep the session open (default: `true`). See [Session Attributes example](examples/session-attributes.js)
+Intent can be resolved using simple string (a text response) or more complex `responseObject`. Its attribute `attrs` will override current sessionAttributes. If you wish to extend current session attributes you can use for example `Object.assign` method. Make sure you set `end` attribute to `false` to keep the session open (default: `true`). See [Session Attributes example](examples/session-attributes.js). Session attribute `previousIntent` is reserved.
 
 ```javascript
 app.intent('AttrsIntent', 'session attributes test', (slots, attrs) => {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "alexia",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "description": "A Framework for creating Amazon Echo (Alexa) skills using Node.js",
   "main": "src/alexia.js",
   "repository": {