If you're interested, you can use the text editor to actually create links out of your own words or phrases instead of posting a URL, which can really mess with your formatting if it is long.  To do so, just click on the hyperlink icon in the text editor after highlighting a word or phrase.  This prompts you to enter the URL you want to link to, and then the specified word or phrase becomes a link.  The hyperlink icon is the one that looks like the links of a chain, or like <->.  It is located in the top left corner of the fourth box from the left under the home tab in the text editor.

Oh, and speaking of Tesla's IPO, this guy is taking the idea of electric superiority pretty far.