this step by step tutorial will guide you with examples on how to put your notes in your HTML documents like .html or .htm files for the pages in your website. This is the code you will need to insert notes in your HTML code. 
today i wanted to learn how to put notes in my html web pages, i wanted to put notes so that i could see my progress but i didn't want the notes displayed on the browser or my website. I couldn't remember how to do it.
so i contacted my web hosting support at www.webune.com i do all my web hosting with them because they have excellent support and service. I recommend them if you are just begining with all this web desing and webmaster stuff like HTML or PHP.
anyway, to put a comment in your html code, simple to this. For example, i want to put "I begin my comments here" as a note in my html code. just follow these steps:
1. start with "<!--
2. then put your notes: "I begin my comments here"
3. close your comments tag with "-->"
so at the end it should look like this:
<!-- I begin my comments here -->
Thanks again to the webune support team for their help on this question I had. I am posting here just in case i forget or someone can lear from it.