SPM only

.github/workflows/ci.yml

@@ -16,8 +16,6 @@ jobs:
       matrix:
         destination: ["platform=macOS", "platform=iOS Simulator,name=iPhone 8"]
     steps:
-      - uses: actions/checkout@v1
-      - name: update submodules
-        run: git submodule update --init
+      - uses: actions/checkout@v2
       - name: xcodebuild test ${{ matrix.destination }}
         run: set -o pipefail && xcodebuild test -scheme Flexer -destination "${{ matrix.destination }}" | xcpretty

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "xcconfigs"]
-	path = xcconfigs
-	url = https://github.com/mrackwitz/xcconfigs.git

README.md

@@ -1,5 +1,6 @@
-[![Github CI](https://github.com/ChimeHQ/Flexer/workflows/CI/badge.svg)](https://github.com/ChimeHQ/Flexer/actions)
-[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg)](https://github.com/Carthage/Carthage)
+[![Build Status][build status badge]][build status]
+[![License][license badge]][license]
+[![Platforms][platforms badge]][platforms]
 
 # Flexer
 
@@ -13,20 +14,12 @@ It turns out that Swift's `Sequence` and `Iterator` concepts work pretty well fo
 
 ## Integration
 
-### Swift Package Manager
-
 ```swift
 dependencies: [
-    .package(url: "https://github.com/ChimeHQ/Flexer.git")
+    .package(url: "https://github.com/ChimeHQ/Flexer")
 ]
 ```
 
-### Carthage
-
-```
-github "ChimeHQ/Flexer"
-```
-
 ## Look-Ahead
 
 Core to lexing is the ability to look ahead at future tokens without advancing. Flexer implements look-ahead with a protocol called `LookAheadIteratorProtocol`. The whole implementation is inspired by the `lazy` property of `Sequence`, and works very similarly.
@@ -120,3 +113,10 @@ typealias ExampleTokenLexer = LookAheadSequence<ExampleTokenSequence>
 We'd love to hear from you! Get in touch via [twitter](https://twitter.com/chimehq), an issue, or a pull request.
 
 Please note that this project is released with a [Contributor Code of Conduct](CODE_OF_CONDUCT.md). By participating in this project you agree to abide by its terms.
+
+[build status]: https://github.com/ChimeHQ/Flexer/actions
+[build status badge]: https://github.com/ChimeHQ/Flexer/workflows/CI/badge.svg
+[license]: https://opensource.org/licenses/BSD-3-Clause
+[license badge]: https://img.shields.io/github/license/ChimeHQ/Flexer
+[platforms]: https://swiftpackageindex.com/ChimeHQ/Flexer
+[platforms badge]: https://img.shields.io/endpoint?url=https%3A%2F%2Fswiftpackageindex.com%2Fapi%2Fpackages%2FChimeHQ%2FFlexer%2Fbadge%3Ftype%3Dplatforms