[doc] Getting Started documentation and tutorial (#300)

improved getting started documentation, with DocC

Author: sebsto

.gitignore

@@ -8,3 +8,4 @@
 xcuserdata
 Package.resolved
 .serverless
+.vscode

Sources/AWSLambdaRuntimeCore/Documentation.docc/Documentation.md

@@ -0,0 +1,2 @@
+# Create a project directory
+mkdir SquareNumber && cd SquareNumber

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-01-01-package-init.sh

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+# Create a project directory
+mkdir SquareNumber && cd SquareNumber
+# create a skeleton project
+swift package init --type executable 

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-01-02-package-init.sh

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+# Create a project directory
+mkdir SquareNumber && cd SquareNumber
+# create a skeleton project
+swift package init --type executable 
+# open Xcode in the current directory
+xed .

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-01-03-package-init.sh

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+# Create a project directory
+mkdir SquareNumber && cd SquareNumber
+# create a skeleton project
+swift package init --type executable 
+# open Xcode in the current directory
+xed .
+# alternatively, you may open VSCode
+code .

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-01-04-package-init.sh

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+// swift-tools-version:5.8
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "SquareNumberLambda",
+)

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-02-01-package.swift

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+// swift-tools-version:5.8
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "SquareNumberLambda",
+    platforms: [
+        .macOS(.v12),
+    ],
+)

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-02-02-package.swift

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+// swift-tools-version:5.8
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "SquareNumberLambda",
+    platforms: [
+        .macOS(.v12),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/swift-server/swift-aws-lambda-runtime.git", from: "1.0.0-alpha"),
+    ],
+)

Sources/AWSLambdaRuntimeCore/Documentation.docc/Resources/code/03-02-03-package.swift

@@ -0,0 +1,17 @@
+// swift-tools-version:5.8
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "SquareNumberLambda",
+    platforms: [
+        .macOS(.v12),
+    ],
+    products: [
+        .executable(name: "SquareNumberLambda", targets: ["SquareNumberLambda"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/swift-server/swift-aws-lambda-runtime.git", from: "1.0.0-alpha"),
+    ],
+)