Add release setup

.github/workflows/release.yaml

+on:
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+      - 'v*'
+
+name: Build and Release
+
+jobs:
+  build:
+    name: Gloabl Job
+    strategy:
+      matrix:
+        node: ['10.x']
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@master
+      - name: Create production build
+        uses: actions/setup-node@master
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install -g yarn
+      - run: yarn
+      - run: yarn build
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1.0.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: false
+      - name: Zip the build
+        uses: thedoctor0/zip-release@master
+        with:
+          filename: 'build.zip'
+          path: './build'
+          exclusions: 'x'
+      - uses: 'finnp/create-file-action@master'
+        env:
+          FILE_NAME: 'README.md'
+          FILE_DATA: "#How To Run Uniswap\n1. Download build.zip and unzip\n2. In terminal navigate to that directory\n3. Run these two commands \n- yarn global add serve \n- serve -s build"
+      - name: Upload Build
+        id: build-asset
+        uses: actions/upload-release-asset@v1.0.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
+          asset_path: build.zip
+          asset_name: build.zip
+          asset_content_type: application/zip
+      - name: Upload setup
+        id: instructions-asset
+        uses: actions/upload-release-asset@v1.0.1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
+          asset_path: README.md
+          asset_name: README.md
+          asset_content_type: application/zip