fixing readme and analysis

README.md

@@ -4,14 +4,14 @@ You can just upload the `analysis.js` file.
 
 or
 
-You can run locally, you should have last node version and install all dependencies running `npm install` on your terminal in this project folder,
-after that, you can run the project just calling analysis, `node analysis.js`;
+Run it locally, you should have lastest node version and install all the dependencies by running `npm install` in your terminal in the project's directory,
+after that, you can run the project by calling the analysis, `node analysis.js`;
 
-## What this does
+## What the analysis does
 
-This analysis must run by Time Interval. It checks if devices with given Tags had communication in the past minutes. If not, it sends an email or sms alert.
+This analysis must run by triggered by a Time Interval. It checks whether devices with given Tags checked in, in the past minutes. If not, it sends an email or sms alert.
 
-## How to use on TagoIO
+## How to use this analysis internally at TagoIO servers
 
 In order to use this analysis, you must to add a new policy in your account and setup the Environment Variable table.<br>
 
@@ -25,14 +25,14 @@ Environment Variables:
 
     4 - email_list: Email list comma separated.
 
-    5 - sms_list: Phone number list comma separated. The phone number must include the country code
+    5 - sms_list: Phone number list comma separated. The phone number must include the country code.
 
 
 Steps to add a new policy:
 
    1 - Click the button "Add Policy" at this url: https://admin.tago.io/am;
 
-   2 - In the Target selector, select the Analysis with the field set as "ID" and choose your Analysis in the list;
+   2 - In the Target selector, with the field set as "ID", choose your Analysis in the list;
 
    3 - Click the "Click to add a new permission" element and select "Device" with the rule "Access" with the field as "Any";
 

analysis.js

@@ -17,7 +17,7 @@
  ** How to use:
  ** To analysis works, you need to add a new policy in your account. Steps to add a new policy:
  **  1 - Click the button "Add Policy" at this url: https://admin.tago.io/am;
- **  2 - In the Target selector, select the Analysis with the field set as "ID" and choose your Analysis in the list;
+ **  2 - In the Target selector, with the field set as "ID", choose your Analysis in the list;
  **  3 - Click the "Click to add a new permission" element and select "Device" with the rule "Access" with the field as "Any";
  **  4 - To save your new Policy, click the save button in the bottom right corner;
  */
@@ -29,9 +29,7 @@ async function myAnalysis(context) {
   // Transform all Environment Variable to JSON.
   const env = Utils.envToJson(context.environment);
 
-  if (!env.account_token) {
-    return context.log("You must setup an account_token in the Environment Variables.");
-  } else if (!env.checkin_time) {
+  if (!env.checkin_time) {
     return context.log("You must setup a checkin_time in the Environment Variables.");
   } else if (!env.tag_key) {
     return context.log("You must setup a tag_key in the Environment Variables.");