Update ERCS: Remove repetitive words (#395)

Signed-off-by: goodactive <[email protected]>

ERCS/erc-1077.md

@@ -174,7 +174,7 @@ Contracts are not obligated to support ether or any other token they don’t wan
 This scheme opens up a great deal of possibilities on interaction as well as different experiments on business models:
 
 * Apps can create individual identities contract for their users which holds the actual funds and then create a different private key for each device they log into. Other apps can use the same identity and just ask to add permissioned public keys to manage the device, so that if one individual key is lost, no ether is lost.
-* An app can create its own token and only charge their users in its internal currency for any ethereum transaction. The currency units can be rounded so it looks more similar to to actual amount of transactions: a standard transaction always costs 1 token, a very complex transaction costs exactly 2, etc. Since the app is the issuer of the transactions, they can do their own Sybil verifications and give a free amount of currency units to new users to get them started.
+* An app can create its own token and only charge their users in its internal currency for any ethereum transaction. The currency units can be rounded so it looks more similar to actual amount of transactions: a standard transaction always costs 1 token, a very complex transaction costs exactly 2, etc. Since the app is the issuer of the transactions, they can do their own Sybil verifications and give a free amount of currency units to new users to get them started.
 * A game company creates games with a traditional monthly subscription, either by credit card or platform-specific microtransactions. Private keys never leave the device and keep no ether and only the public accounts are sent to the company. The game then signs transactions on the device with gas price 0, sends them to the game company which checks who is an active subscriber and batches all transactions and pays the ether themselves. If the company goes bankrupt, the gamers themselves can set up similar subscription systems or just increase the gas price. End result is a **ethereum based game in which gamers can play by spending apple, google or xbox credits**.
 * A standard token is created that doesn’t require its users to have ether, and instead allows tokens to be transferred by paying in tokens. A wallet is created that signs messages and send them via whisper to the network, where other nodes can compete to download the available transactions, check the current gas price, and select those who are paying enough tokens to cover the cost. **The result is a token that the end users never need to keep any ether and can pay fees in the token itself.**
 * A DAO is created with a list of accounts of their employees. Employees never need to own ether, instead they sign messages, send them to whisper to a decentralized list of relayers which then deploy the transactions. The DAO contract then checks if the transaction is valid and sends ether to the deployers. Employees have an incentive not to use too many of the companies resources because they’re identifiable.  The result is that the users of the DAO don't need to keep ether, and **the contract ends up paying for it's own gas usage**.

ERCS/erc-2309.md

@@ -88,7 +88,7 @@ Standardizing the `ConsecutiveTransfer` event gives decentralized platforms a st
 
 Take this example. I sell magical fruit and have a farm with 10,000 magical fruit trees each with different fruit and 1,000 new trees every few years. I want to turn each tree into a non-fungible token that people can own. Each person that owns one of my non-fungible tree tokens will receive a quarterly percentage of each harvest from that tree. The problem is that I would need to create and transfer each of these tokens individually - which will cost me a lot of time and money and frankly would keep me from doing this.
 
-With this extension I would be able to to mint my initial 10,000  tree tokens in one transaction. I would be able to quickly and cheaply mint my additional 1,000  tree tokens when a new batch is planted. I would then be able to transfer all of the 10,000+ tree tokens to a special smart contract that keeps track of the selling and distribution of funds in one transaction all while adhering to a specified standard.
+With this extension I would be able to mint my initial 10,000  tree tokens in one transaction. I would be able to quickly and cheaply mint my additional 1,000  tree tokens when a new batch is planted. I would then be able to transfer all of the 10,000+ tree tokens to a special smart contract that keeps track of the selling and distribution of funds in one transaction all while adhering to a specified standard.
 
 **Rationale to have a single event that covers minting, burning, and transferring**
 

ERCS/erc-3448.md

@@ -182,7 +182,7 @@ function getMetadataWithoutCall () public pure returns (
 ```solidity
 /// @notice Returns the metadata of this (MetaProxy) contract.
 /// Only relevant with contracts created via the MetaProxy standard.
-/// @dev This function is aimed to to be invoked via a call.
+/// @dev This function is aimed to be invoked via a call.
 function getMetadataViaCall () public pure returns (
   address a,
   uint256 b,