Merge pull request #620 from bnbarham/fix-pm-warning

Add SwiftParser's README to the exclude list

Author: bnbarham

Package.swift

@@ -105,7 +105,10 @@ let package = Package(
     ),
     .target(
       name: "SwiftParser",
-      dependencies: ["SwiftSyntax"]
+      dependencies: ["SwiftSyntax"],
+      exclude: [
+        "README.md"
+      ]
     ),
     .executableTarget(
       name: "lit-test-helper",
@@ -173,4 +176,4 @@ if ProcessInfo.processInfo.environment["SWIFTCI_USE_LOCAL_DEPS"] == nil {
   package.dependencies += [
     .package(path: "../swift-argument-parser")
   ]
-}
+}