update TOC

Author: skywinder

README.md

@@ -10,20 +10,35 @@
 
 **web3swift** is your toolbelt for any kind interactions with Ethereum network.
 
-- [Features](#features)
-- [Design Decisions](#design-decisions)
-- [Requirements](#requirements)
-- [Migration Guides](#migration-guides)
-- [Communication](#communication)
-- [Installation](#installation)
-- [Usage](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md)
-	- **Account Management -** [Create Account](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#create-account), [Import Account](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#import-account), [Manage Keystore](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#manage-keystore), [Ethereum Address](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#ethereum-address), [Get Balance](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#get-balance)
-	- **Transactions Operations -** [Prepare Transaction](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#prepare-transaction), [Send Transaction](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#send-transaction)
-	- **Chain State -** [Get Block Number](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#get-block-number)
-- [Example Project](#example-project)
-- [Credits](#credits)
-- [Donations](#donations)
-- [License](#license)
+
+  * [Features](#features)
+  * [Design Decisions](#design-decisions)
+  * [Requirements](#requirements)
+  * [Migration Guides](#migration-guides)
+  * [Communication](#communication)
+  * [Installation](#installation)
+    + [CocoaPods](#cocoapods)
+    + [Carthage](#carthage)
+  * [Example Project](#example-project)
+  * [Credits](#credits)
+    + [Security Disclosure](#security-disclosure)
+  * [Donations](#donations)
+  * [License](#license)
+
+---
+  - [Usage Doc](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md)
+	- **Account Management** 
+		- [Create Account](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#create-account)
+		- [Import Account](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#import-account)
+		- [Manage Keystore](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#manage-keystore)
+		- [Ethereum Address](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#ethereum-address)
+		- [Get Balance](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#get-balance)
+	- **Transactions Operations** 
+		- [Prepare Transaction](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#prepare-transaction)
+		- [Send Transaction](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#send-transaction)
+	- **Chain State** 
+		- [Get Block Number](https://github.com/matterinc/web3swift/blob/feature/readmeImprovement/Documentation/Usage.md#get-block-number)
+
 
 ## Features