interfaced -> interacted

ethereum/EIPs#881 (comment)

EIPS/eip-165.md

@@ -25,7 +25,7 @@ Herein, we standardize the following:
 
 ## Motivation
 
-For some "standard interfaces" like [the ERC-20 token interface](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), it is sometimes useful to query whether a contract supports the interface and if yes, which version of the interface, in order to adapt the way in which the contract is to be interfaced with. Specifically for ERC-20, a version identifier has already been proposed. This proposal stadardizes the concept of interfaces and standardizes the identification (naming) of interfaces.
+For some "standard interfaces" like [the ERC-20 token interface](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), it is sometimes useful to query whether a contract supports the interface and if yes, which version of the interface, in order to adapt the way in which the contract is to be interacted with. Specifically for ERC-20, a version identifier has already been proposed. This proposal stadardizes the concept of interfaces and standardizes the identification (naming) of interfaces.
 
 ## Specification