This is a great post , and I think its valuable to have in both languages but I could suggest a few improvements/additions:

The opening english sentence is a little awkward grammatically, what about 
>"These are commands everyone should know in order to structure and format their text. The most important commands are summarized here."

The images do look nice, but aren't much help for people trying to copy paste unfamiliar commands, and isn't on the blockchain directly. 

`<code>tags like allow you to show the tags</code>`

**For centering images**
`<center><img src="http://src"></center>`

We can now <a href="https://steemit.com/steemit/@steemitblog/new-advanced-formatting-features">left and right align whole sections too</a> ,  theres an example of this in <a href="https://steemit.com/australia/@ausbitbank/the-time-my-town-flooded-the-fragility-of-the-food-supply-and-lessons-learned-original-photos">my latest post</a> .

<center><em>I'm just trying to help people improve their posts for a better chance at doing well here :)</em></center>