External Links (e.g., Mouse)
Best not to use links to external sites like the one made to Wikipedia to the creature called a mouse. Sending them away from this site could just confuse folks.
However there are internal links, that can be useful. See http://wikieducator.org/Mouse
Looking better, though I see you are still using the external links syntax, rather than internal.
The internal looks like this.
where we simply put the double square brackets around a 'linkable' term.
If you put the whole http address in
with the square brackets around all of the above including the word Mouse at the end the coding forces the browser to outside the side to find the link.
The former (first one) is more 'elegant' in its coding.