Update README.md

README.md

@@ -24,10 +24,12 @@ The repository is organized by source/tools for easy discovery. You can also use
 
 To ensure the quality of the templates, we have defined a framework. Each notebook shall be organized with the following sections:  
 - **Naas logo**
-- **# Title**: "Tool - Action of the notebook", as h1 (an "Open in Naas" button will be automatically added by the CI/CD when a notebook is merged to the master branch)
-- **Tags**: hastags of the topics the notebook is about, as text
-- **Author**: name and social profile link of the author(s), as text
-- **Description**: a one-liner explaining the benefits of the notebooks for the user, as text
+- **# Title**: "Tool - Action of the notebook", as h1. An "Open in Naas" button will be added automatically by the CI/CD when a notebook is merged to the master branch.
+- **Tags:**: hashtags relevant to the topics covered in the notebook, as text
+- **Author:**: name and social profile link of the author(s), as text
+- **Last update:** YYYY-MM-DD (Created: YYYY-MM-DD): The last update date refers to when the notebook was last edited, while the created date corresponds to when the notebook was initially merged.
+- **Description:**: a one-liner explaining the benefits of the notebooks for the user, as text
+- **References:**: list of references and websites utilized in the creation of this notebook
 - **## Input**: list of all the variables, credentials, that needs to be setup, as h2
 - **## Model**: list the functions applied to the data, as h2
 - **## Output**: list the assets to be used by the user and its distribution channels if any, as h2