For some time, companies have known that customers visiting their website are impatient to find the information they want. But now customers are bringing that same impatience to their search for technical information or “how-tos” that tell them how to use the products they bought. Traditionally, those “how-to” guides or “technical docs,” as they are often called, were found either online posted as a PDF on a company’s website or on a CD that a company shipped with its product. Such “technical....