It's been with great pleasure I write to accomplish my achievement 4 task. I would like to say a big thank you to @cryptokannon, @njaywan, @fendit, and @belenguerra for this wonderful lesson in this achievement task and for your constant support.

It's very necessary to make your post look very neat and attractive in steemit in order to make reading and accessing of one's post very easy by readers.

Below are the following markdowns which should be used regularly in order to make your post look nice, attractive, and readable.

MARKDOWN FOR HEADING

TYPES OF COMPUTERS

TYPES OF COMPUTERS

TYPES OF COMPUTERS

TYPES OF COMPUTERS

TYPES OF COMPUTERS

The above is created by writing # tag and then give a space then type the heading;
# Headline 1

### Headline 2

#### Headline 3

##### Headline 4

###### Headline 5

This indicates that; the more the # sign the smaller the size becomes.

MARKDOWNS FOR CENTER ALIGN, RIGHT ALIGN, AND LEFT ALIGN TEXT AND IMAGES

We will consider the text " I am here to accomplish my achievement 4 task".

TEXT LEFT I am here to accomplish my achievement 4 task.

IMAGE ALIGNMENT

.

.

MARKDOWNS IN CREATING TABLES

MERITS OF INTERNET	DEMERITS OF INTERNET
For Research	Spamming
For Making online money	Theft, and hacking
Easy communication	Pornographic and violent images

This output can be done by applying the codes below:

Header 1 | Header 2
--------- | ----------
Cell 1 | Cell 2

MARKDOWN FOR BLOCKQUOTES

e.g. Imagination is more important than knowledge. Writing this in blockquote we get:

Imagination is more important than knowledge.
Albert Einstein

MARKDOWN FOR ADDING VIDEOS OR GIFS

source

I have really learnt a lot from this achievement and I would make sure I do apply the necessary markdowns in my subsequent post to make my post look very readable and attractive. Thank you very much for this great lesson taught.
Thank you all for reading.