📝(i18n) add details about translation process

Propose a way to check if every is ok before
upload on crowdin
Add information about crowdin api token

docs/i18n.md

@@ -13,14 +13,41 @@ setup your local environment with the following environment variables:
 cp ./env.d/development/crowdin.dist ./env.d/development/crowdin
 ```
 
-Then fill in the `CROWDIN_API_TOKEN` and `CROWDIN_PROJECT_ID` variables in the
+Then fill "CROWDIN_API_TOKEN" with your token and "CROWDIN_PROJECT_ID" with the project id
-`./env.d/development/crowdin` file.
+in the `./env.d/development/crowdin` file.
+
+NB: If you don't have a personal Crowdin API token, go to Crowdin interface to generate it: 
+Settings -> API -> Personal Access Tokens -> New token
 
 This configuration file will be loaded by the crowdin docker instance.
 
 
 ## How to update the translations
 
+### First way (safe way)
+
+1/ Generate the translation files for both frontend and backend
+  ```bash
+  make i18n-generate
+  ```
+  Check locally everything is ok before uploading the files to the translation platform.
+
+2/ Upload the files to the translation platform (crowdin):
+  ```bash
+  make crowdin-upload
+  ```
+
+3/ Fill the missing translations on the translation platform:
+
+  => [https://crowdin.com/project/lasuite-people](https://crowdin.com/project/lasuite-people)  
+
+4/ Download the translated files from the translation platform and compile them:
+  ```bash
+  make i18n-download-and-compile
+  ```
+
+### Second way (faster way)
+
 1/ Generate the translation files for both frontend and backend and upload them to the translation platform (crowdin):
   ```bash
   make i18n-generate-and-upload