update the structure and add FAQ

docs/src/SUMMARY.md

@@ -1,8 +1,6 @@
 # Summary
 
 - [Introduction](./intro.md)
-  - [What is Beacon Chain?](./beacon-chain.md)
-  - [What is Nimbus?](./nimbus.md)
 - [Become a Validator](./validator.md)
 - [Installation](./install.md)
 - [API](./api.md)

docs/src/beacon-chain.md

@@ -1,18 +0,0 @@
-# What is Beacon Chain?
-
-A complete introduction about the beacon chain can be found in the [Ethereum 2.0 blog series](https://our.status.im/two-point-oh-the-beacon-chain/).
-
-In short, the beacon chain is a **new type of blockchain** to help the Ethereum blockchain to smoothly transfer its consensus algorithm from PoW (Proof of Work) to PoS (Proof of Stake), aka Ethereum 2.0. You can also see it as a hybrid PoS + PoW solution.
-
-## Differences Compared to Ethereum 1.0
-
-In traditional PoW, those that propose new blocks are called **_miners_**, whereas in PoS, they are called **_validators_**. In essence, _miners_ rely on actual hardware (such as some specifically manufactured mining machines), while _validators_ rely on just software.
-
-## What it is Like to Be a Validator?
-
-It is obvious that you must have enough computing power or dedicated hardware in order to be a miner, but how about being a validator? Here is a brief overview:
-
-1. A special smart contract named **_deposit contract_** is deployed on the original Ethereum blockchain. Note that in this case, the new beacon chain and the original blockchain co-exists.
-2. To "register" as a validator, you have to first deposit **_32 Ether_** from your account to this smart contract.
-3. Run the beacon node and wait for the network to sync before your validator is activated.
-4. That's all! Remember to stay connected to the network, or you may lose your deposit. :P

docs/src/faq.md

@@ -1 +1,28 @@
 # Frequently Asked Questions
+
+## 1. What is Beacon Chain?
+
+A complete introduction about the beacon chain can be found in the [Ethereum 2.0 blog series](https://our.status.im/two-point-oh-the-beacon-chain/).
+
+In short, the beacon chain is a **new type of blockchain** to help the Ethereum blockchain to smoothly transfer its consensus algorithm from PoW (Proof of Work) to PoS (Proof of Stake), aka Ethereum 2.0. You can also see it as a hybrid PoS + PoW solution.
+
+## 2. Differences Between Beacon Chain and Ethereum 1.0
+
+In traditional PoW, those that propose new blocks are called **_miners_**, whereas in PoS, they are called **_validators_**. In essence, _miners_ rely on actual hardware (such as some specifically manufactured mining machines), while _validators_ rely on just software.
+
+## 3. What it is Like to Be a Validator?
+
+It is obvious that you must have enough computing power or dedicated hardware in order to be a miner, but how about being a validator? Here is a brief overview:
+
+1. A special smart contract named **_deposit contract_** is deployed on the original Ethereum blockchain. Note that in this case, the new beacon chain and the original blockchain co-exists.
+2. To "register" as a validator, you have to first deposit **_32 Ether_** from your account to this smart contract.
+3. Run the beacon node and wait for the network to sync before your validator is activated.
+4. That's all! Remember to stay connected to the network, or you may lose your deposit. :P
+
+## 4. What is Nimbus?
+
+In a sentence, Nimbus is an Ethereum 1.0 & 2.0 Client for Resource-Restricted Devices.
+
+It is open sourced at [github.com/status-im/nimbus](github.com/status-im/nimbus). Development progress and updates can be viewed at the [Nimbus blog](https://our.status.im/tag/nimbus/).
+
+## 5. Why should you choose Nimbus?

docs/src/intro.md

@@ -11,8 +11,8 @@ Nimbus beacon chain is a research implementation of the beacon chain component o
 
 In this book, we will cover:
 
-1. [What is beacon chain](./beacon-chain.md) and [what is Nimbus](./nimbus.md) to equip you with some basic knowledge.
+1. [What is beacon chain](./faq.md#1-what-is-beacon-chain) and [what is Nimbus](./faq.md#4-what-is-nimbus) to equip you with some basic knowledge.
-2. How to [become a validator](./validator.md) in Ethereum as a user.
+2. How to [become a validator](./validator.md) in Ethereum 2.0 as a user.
 3. [Installation steps](./install.md) for nimbus beacon chain.
 4. The [api documentation](./api.md) for interested developers.
 5. [Advanced usage](./advanced.md) for developers.

docs/src/nimbus.md

@@ -1,6 +0,0 @@
-# What is Nimbus?
-In a sentence, Nimbus is an Ethereum 1.0 & 2.0 Client for Resource-Restricted Devices.
-
-It is open sourced at [github.com/status-im/nimbus](github.com/status-im/nimbus). Development progress and updates can be viewed at the [Nimbus blog](https://our.status.im/tag/nimbus/). 
-
-## Why should you choose Nimbus?