remove readme

sync/README.md

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-# Sync
-
-Sync is a synchronization library for distributed systems.
-
-## Overview
-
-Distributed systems by their very nature are decoupled and independent. In most cases they must honour 2 out of 3 letters of the CAP theorem 
-e.g Availability and Partitional tolerance but sacrificing consistency. In the case of microservices we often offload this concern to 
-an external database or eventing system. Go Sync provides a framework for synchronization which can be used in the application by the developer.
-
-## Getting Started
-
-- [Leader](#leader) - leadership election for group coordination
-- [Lock](#lock) - distributed locking for exclusive resource access
-- [Task](#task) - distributed job execution
-- [Time](#time) - provides synchronized time
-
-## Lock
-
-The Lock interface provides distributed locking. Multiple instances attempting to lock the same id will block until available.
-
-```go
-import "github.com/micro/go-micro/sync/lock/consul"
-
-lock := consul.NewLock()
-
-// acquire lock
-err := lock.Acquire("id")
-// handle err
-
-// release lock
-err = lock.Release("id")
-// handle err
-```
-
-## Leader
-
-Leader provides leadership election. Useful where one node needs to coordinate some action.
-
-```go
-import (
-	"github.com/micro/go-micro/sync/leader"
-	"github.com/micro/go-micro/sync/leader/consul"
-)
-
-l := consul.NewLeader(
-	leader.Group("name"),
-)
-
-// elect leader
-e, err := l.Elect("id")
-// handle err
-
-
-// operate while leader
-revoked := e.Revoked()
-
-for {
-	select {
-	case <-revoked:
-		// re-elect
-		e.Elect("id")
-	default:
-		// leader operation
-	}
-}
-
-// resign leadership
-e.Resign() 
-```
-
-## Task
-
-Task provides distributed job execution. It's a simple way to distribute work across a coordinated pool of workers.
-
-```go
-import (
-	"github.com/micro/go-micro/sync/task"
-	"github.com/micro/go-micro/sync/task/local"
-)
-
-t := local.NewTask(
-	task.WithPool(10),
-)
-
-err := t.Run(task.Command{
-	Name: "atask",
-	Func: func() error {
-		// exec some work
-		return nil
-	},
-})
-
-if err != nil {
-	// do something
-}
-```
-
-## Time
-
-Time provides synchronized time. Local machines may have clock skew and time cannot be guaranteed to be the same everywhere. 
-Synchronized Time allows you to decide how time is defined for your applications.
-
-```go
-import (
-	"github.com/micro/go-micro/sync/time/ntp"
-)
-
-
-t := ntp.NewTime()
-time, err := t.Now()
-```
-
-## TODO
-
-- Event package - strongly consistent event stream e.g kafka