set share images for use cases

_src/_usecases/government/benben.md

@@ -4,6 +4,7 @@ layout: usecase
 title: Blockchain Powered Land Registry in Ghana with BenBen
 description: BenBen is building a land registry in Ghana to help lock in property rights for citizens.
 header: hero-benben.jpg
+image: hero-benben.jpg
 
 quote:
     copy: BigchainDB allows us to manage land titles and transactions the way we want, something that no other blockchain can do.

_src/_usecases/identity/recruit.md

@@ -5,6 +5,7 @@ title: Verified Educational Credentials with Recruit Technologies
 description: Recruit Technologies is building a platform to verify HR credentials.
 
 header: hero-recruit.jpg
+image: hero-recruit.jpg
 
 quote:
     copy: "We could have implemented the decentralized technology ourselves with the help of the open source community, but the support and expertise provided by BigchainDB changed the whole process and made it more efficient."

_src/_usecases/ip/resonate.md

@@ -4,6 +4,7 @@ layout: usecase
 title: Own the Music You Stream with Resonate
 description: "Resonate is a music streaming cooperative owned by music makers and the listeners who love them, supported by blockchain technology."
 header: hero-resonate.jpg
+image: hero-resonate.jpg
 
 quote:
     copy: "Looking at the Bitcoin blockchain, it was clear it wouldn’t be able to handle Resonate’s use case. We met BigchainDB and realized, oh wait, they’ve solved this problem."

_src/_usecases/supplychain/innogy.md

@@ -4,6 +4,7 @@ layout: usecase
 title: "“Every Product Has a Story” - innogy’s Digital Product Memory"
 description: "innogy is leading the charge to reveal every product's story. Their Digital Product Memory project leads to a future where we know the exact provenance and authenticity of everything we touch, see, feel and taste – and in the process, solve many of the problems in today’s global supply chains."
 header: hero-innogy.jpg
+image: hero-innogy.jpg
 
 quote:
     copy: BigchainDB powers the machine economy.