Update Build.md with suggestions

[osteth]

I came across this repo after finding @danielmiessler SecLists repo thought it was a cool and wanted to contribute some thoughts/suggestions based on my own experiences.

[osteth]

This is likely a dead project, but I thought the idea of open and colaborative disaster planning was cool so I added some things that I like. I have been evaluating items and refining my own bugout bag for the last 15yrs. One of the troubles I have seen in preparedness is that the value of many things is very subjective to preferences. IE. some people love tents and sleeping bags while I prefer hammocks.