1.If you want to draw attention with the size of the headers you should only place the symbol #. For example:

Header H1

Header H2

Header H3

Header H4

2.If you want your text to have bold, italics and crossed out you should only place the following commands:
The asterisk ** symbol, underscore and underscore ~~ (stars or asterisks, underscore and virgulilla [or I do not know what that symbol is called by itself but it is this ~]).

Texto de ejemplo en negritas con asteriscos dobles
Texto de ejemplo en negritas con guion-bajo doble

3.If you only want to write in bold you should only use the double asterisks in the following way:

Hi
Hi

4.If you want to highlight something in your text with bold and italics you must write the following command:

** _ Text of example cursive and at the same time bold_ **

5.If you take an appointment you must place the Major sign what> at the beginning of the line.

This is a quoted text.

6.To centralize your text you must enclose in the middle of the

7.If what you want is to justify the text you do it by writing on both sides of the paragraph and enclosing in the middle of the