minor typos (#4801)

EIPS/eip-3978.md

@@ -13,7 +13,7 @@ updated: 2022-02-14
 
 ## Abstract
 
-Revering whole transaction or some sub-call of it means ignoring any state modifications happened inside. But now users are being charged for such non-modifications as for modifications.
+Reverting whole transaction or some sub-call of it means ignoring any state modifications happened inside. But now users are being charged for such non-modifications as for modifications.
 
 Since [EIP-3298](./eip-3298.md) gas refund mechanism works for storage restores only inside the same transaction. But on reverts gas refund is not being increased, it will even be completely erased - this should be changed.
 
@@ -29,13 +29,13 @@ Moreover it seems fair to charge CREATE and CREATE2 operations 32,000 fix price
 
 ## Motivation
 
-Blockhain users pay for storage non-modification as for storage modification - this seems unfair. Sometimes it's even cheaper to transfer tokens back to the user at the end of the transaction instead of vererting it too keep existing gas refund.
+Blockhain users pay for storage non-modification as for storage modification - this seems unfair. Sometimes it's even cheaper to transfer tokens back to the user at the end of the transaction instead of reverting it too keep existing gas refund.
 
 ## Specification
 
 Let's accumulate `call.sstores_sloads_diff_counter += (SSTORE_price - SLOAD_price)` on every `SSTORE` for every call. And let's accumulate `current_call.log_gas_counter += newEvent.gas`
 
-```
+```javascript
 if (call.reverted) {
     // existing behavior
     tx.gas_refund -= call.gas_refund_counter;