Update de-projects.json

context question about LTC: I wanted to list the 3 key differences to BTC as well, instead of just stopping the sentence there. "Slower deflation" is barely an educated guess. Or does a longer time period for halving the block discovery reward and more coins overall actually means faster deflation?!?
Merge pull request #802 from Cathryne/master

Update de-projects.json in various sections