Created TL;DR (a.k.a. sample codes) (markdown)

TL;DR-(a.k.a.-sample-codes).md

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+Setting-up with incremental migration support:
+```swift
+CoreStore.defaultStack = DataStack(
+    modelName: "MyStore",
+    migrationChain: ["MyStore", "MyStoreV2", "MyStoreV3"]
+)
+```
+
+Adding a store:
+```swift
+do {
+    try CoreStore.addSQLiteStore(
+        fileName: "MyStore.sqlite",
+        completion: { (result) -> Void in
+            // ...
+        }
+    )
+}
+catch {
+    // ...
+}
+```
+
+Starting transactions:
+```swift
+CoreStore.beginAsynchronous { (transaction) -> Void in
+    let person = transaction.create(Into(MyPersonEntity))
+    person.name = "John Smith"
+    person.age = 42
+
+    transaction.commit { (result) -> Void in
+        switch result {
+            case .Success(let hasChanges): print("success!")
+            case .Failure(let error): print(error)
+        }
+    }
+}
+```
+
+Fetching objects:
+```swift
+let people = CoreStore.fetchAll(From(MyPersonEntity))
+```
+```swift
+let people = CoreStore.fetchAll(
+    From(MyPersonEntity),
+    Where("age > 30"),
+    OrderBy(.Ascending("name"), .Descending("age")),
+    Tweak { (fetchRequest) -> Void in
+        fetchRequest.includesPendingChanges = false
+    }
+)
+```
+
+Querying values:
+```swift
+let maxAge = CoreStore.queryValue(
+    From(MyPersonEntity),
+    Select<Int>(.Maximum("age"))
+)
+```
+
+But really, there's a reason I wrote this huge Wiki. Read up on the details!
+
+Check out the **CoreStoreDemo** app project for sample codes as well!
+
+
+## Contents
+- [[Architecture]]
+- [[Setting up]]
+- [[Saving and processing transactions]]
+- [[Fetching and querying]]
+- [[Logging and error handling]]
+- [[Observing changes and notifications]]