Remove unnecessary section from README
@@ -18,79 +18,6 @@ IoTeX [whitepaper](https://iotex.io/white-paper) for details.
Currently, This repo is of alpha-quality with limited features supported and it is subjected to rapid change. Please
contact us if you intend to run it in production.
-## System Components and Flowchart
-![systemflowchart_account](https://user-images.githubusercontent.com/15241597/44813900-e9717500-ab8f-11e8-8641-535c151c8df2.png)
-
-## Feature List
-### Testnet Beta (codename: Epik)
-1. TBC (Transactions, Block & Chain)
-* Bech32-encoded address
-* Serialization and deserialize of messages on the wire
-* Merkle tree
-* Actions, transfers, votes, blocks and chain
-* Fast and reliable blockchain/state storage via BoltDB and DB transaction support
-* Improved block sync from network peers
-* Basic framework for script and VM
-* Account/state layer built on top of Merkle Patricia tree
-* Voting and unvoting for block producer candidates
-* New account-based action pool
-* Initial implementation of secure keystore of private keys
-* Initial integration with Ethereum Virtual Machine (EVM), smart contracts (Solidity)
-
-2. Network
-* Efficient gossip protocol over TLS
-* Broadcast & unicast semantics
-* Seeding through network config
-* Rate-limit requests per connection
-* Peer discovery
-* Large-scale simulation and load test
-
-3. Consensus
-* Framework for plugable consensus
-* Standalone and NOOP schemes
-* Full implementation of FSM-based Roll-DPoS
-* Full integration with delegates pool
-* Roll-DPoS simulator
-* Initial implementation of random beacon
-
-4. Clients
-* Full implementation of JSON RPC
-* UI Design and backend implementation of explorer
-* Command line console
-* Basic wallet
-
-5. Crypto
-* libsect283 -- lightweight crypto library, with cgo binding
-* libtblsmnt -- complete BLS signature parameterization and implementation, with cgo binding
-* Implementation of distributed key generation (DKG) with cgo binding
-
-6. Testing \& Integration & Deployment
-* Improved action injection and address generation tools
-* Work-preserving restart
-* Dockerization of IoTeX server
-* Large-scale testnet deployment via Kubernetes
-* Unit test coverage ~70%
-* Thorough integration tests
-* Enhancement of existing features, performance and robustness
-
-### Mainnet Preview
-
-* Cross Chain Communication (CCC)
-* Improving VM and smart contract
-* Lightweight stealth address
-* Fast block sync and checkpointing
-* Full explorer and wallet supporting Hierarchical Deterministic (HD) addresses
-* SPV clients
-* Seeding through IPFS and version negotiation
-* Pluggable transportation framework w/ UDP + TCP support
-* Peer metrics
-* e2e demo among 500-1000 peers
-* Enhancement of existing features
-* Performance and stability improvement
-* And much more ...
-
-
-## Dev Tips
## Minimum requirements
| Components | Version | Description |
