[mod] Proofread Substrate article

Already a great English translation!
Not fully perfect English thought.
There is a part of French way of writting still in.

content/2022-04-21-duniter-substrate.md

@@ -13,7 +13,7 @@ Duniter software has seen many evolutions since its launch [in April 2016](/ucoi
 
 ### Migrating the Ğ1 🏆
 
-Duniter's first objective is to power the Ğ1 currency whose web of trust currently counts 4971 members with a 300 members / month growth rate. We want to work together with the community to make the transition towards Duniter v2 as smooth as possible without a "hard fork". Each member will keep his/her status, each account will keep its balance, currency settings will remain nearly unchanged, wallets (formerly "clients") will be adapted, and we will try to make the downtime as short as possible (ideally less than a day).
+Duniter's first objective is to power the Ğ1 currency whose web of trust currently counts 4971 members with a 300 members / month growth rate. We want to work together with the community to make the transition towards Duniter v2 as smooth as possible without a "hard fork". Each member will keep his/her status, each wallet will keep its balance, the currency parameters will remain nearly unchanged, wallets (formerly "clients") software will be adapted, and we will try to make the transition as short as possible (ideally less than a day).
 
 ### International outreach 🌍
 
@@ -29,11 +29,11 @@ Duniter v1 was already part of a comprehensive approach to treat blockchain as a
 
 Let's now move on to the technical part, where we deal with the concrete issues raised by this migration.
 
-### Dropping POW for BABE/GRANDPA 👾
+### Dropping the PoW mechanism in favor for BABE/GRANDPA 👾
 
 [🔗 forum (fr)](https://forum.duniter.org/t/abandon-de-la-pow-au-profit-de-babe-grandpa/8901) [🔗 forum (fr)](https://forum.duniter.org/t/g1v2-proposition-de-passer-au-consensus-hybride-babe-grandpa/8610)
 
-Duniter's proof of work was a point often criticised. Although our custom [personalised difficulty](/wiki/duniter/2018-11-27-duniter-proof-of-work/#personalised-difficulty) reduces energy consumption and distributes the addition of blocks among blacksmiths, the [BABE](https://docs.substrate.io/v3/advanced/consensus/#babe) for block authoring and [GRANDPA](https://docs.substrate.io/v3/advanced/consensus/#grandpa) for finalization will allow us to greatly accelerate data validation (~30 minutes → ~30 seconds) while limiting the "waste" of CPU resources.
+Duniter's proof of work was often a criticised point. Although our custom [personalised difficulty](/wiki/duniter/2018-11-27-duniter-proof-of-work/#personalised-difficulty) which reduces the energy consumption and distributes the addition of blocks among blacksmiths, the [BABE](https://docs.substrate.io/v3/advanced/consensus/#babe) for block authoring and [GRANDPA](https://docs.substrate.io/v3/advanced/consensus/#grandpa) for finalization will allow us to greatly accelerate the data validation (~30 minutes → ~30 seconds) while limiting the "waste" of CPU resources.
 
 
 ### Blacksmiths subweb 🌋