Update moneropedia node entry with "network upgrades" instead of "hardfork" and month to "October" and "April" Instead of "September" and "March"

+ correction on Italian Account
+ Removed leftover miners.md (replaced by mining.md)
+ Removed Dust and update Copyright
+ Code improvement to avoid reading the config file and to use the builtin jekyll config variable passed in the content
+ Ammount.md:25/26 glitch "\@transaction-privacy" corrected. PL to be checked twice.
+ Italian ammount.md moneropedia links corrected (terms added to destination entries, unnecessary markdown links removed)
+ Polish corrections
+ extend ruby \word-boundary in regex to match `-based` `-like` `-form`
+ Updated readme according to the new way to add or translate a moneropedia entry
+ fix mining with CryptoNight variant
+ rebased to include AR
+ chery picked #820 to avoid conflicts

- Moved technical specs out of 'Resources' and into root

Sorry for throwing everything into one commit, splitting my changes
to individual will probably take ages.

* clarified text

My assumption is that people visiting the Monero site to find out what a node is are going to be less knowledgeable about cryptocurrency as a whole, so this is written to that audience. We can definitely expand articles and add depth later.