Small bugs in install.es.pdf

[Jordi Minyana Estruch <jomerg@terra.es>]

Hi,
When I read install.es.pdf I found a couple of small bugs:

- page 71/paragraph 6.8 - In the first line of the page 71 the 
translator has forgotten remove an english text:
"Se le preguntará si quiere preservar la You will be asked whether to 
preserve"

- page 80/paragraph 8.4 - The paragraph starts with "Lai" instead of "La".

		Jordi