Update README.md

Move feature to wiki.

Author: xiahualiu

README.md

@@ -12,32 +12,6 @@ An **ultra lightweight & fast**, **portable** & **type-safe** in-memory database
 
 [PawnDB Doxygen Docs](https://xiahualiu.github.io/PawnDB/)
 
-## Features
-
-### Memory Management
-- Built-in buffer pool management.
-- No dynamic memory allocation system call (`malloc` or `new`) used.
-
-### Transaction Management
-- Strict 2-Phase Locking (2PL).
-- Tuple-level shared/exclusive locks.
-- Support lock promotion.
-- ACID compliance.
-- Single record operations.
-- Deadlock prevention.
-
-### Type Safety
-- Compile-time type checking.
-- CRTP design pattern, does not use `virtual` functions.
-- No complicated inheritance due to Mixin pattern used.
-
-### Portable & Extendable
-- Can be used with external data serializer such as [Protobuf](https://github.com/protocolbuffers/protobuf).
-- Fully portable based on C++17 standard library.
-  - Multi-thread based on `std::thread`.
-  - No 3rd party code & license involved.
-  - *Also requires Posix Domain Socket support for client communication.*
-
 ## Language
 
 * PawnDB is written in [ISO C++17](https://isocpp.org/std/the-standard), without any compiler extensions.