The simple stuff:

This is heading 2

this is a paragraph
with a line break and bold, italic and underlined

and the code:

  <h2>This is heading 2</h2>
  <p>this is a paragraph<br>with a line break and <b>bold</b>, <i>italic</i> and <u>underlined</u></p>
  
  //h1= big, h6=small
  //I hate heading 1, looks too big
  
  
  <a href="https://www.youtube.com/">Here's a link to yt</a>
  <img src="waves.gif" width="104" height="42">
  
  //in src you put the name of the image (and yes gifs are ok too!)
  //you can change size to whatever you want in width and height
  
  
  //I also like to leave some space between segments. There's probably a better way to do this but...
  <br> <br> <br> <br> does the trick for now