Fix lint errors

package.json

@@ -39,5 +39,8 @@
     "not dead",
     "not ie <= 11",
     "not op_mini all"
-  ]
+  ],
+  "eslintConfig": {
+    "extends": "react-app"
+  }
 }

src/DownloadLink.js

@@ -50,6 +50,11 @@ export default class DownloadLink extends React.Component {
   }
 
   render() {
-    return <a {...this.props} href={this.state.href || this.props.href} />;
+    return (
+      <a {...this.props} href={this.state.href || this.props.href}>
+        {/* We have to explicitly set the children to make ESLint happy */}
+        {this.props.children}
+      </a>
+    );
   }
 }

src/FocusedSkin.js

@@ -1,7 +1,7 @@
 import React from "react";
 import { connect } from "react-redux";
 import WebampComponent from "./WebampComponent";
-import Readme from "./Readme";
+// import Readme from "./Readme";
 import DownloadLink from "./DownloadLink";
 import * as Utils from "./utils";
 import * as Selectors from "./redux/selectors";

src/redux/epics.js

@@ -3,14 +3,14 @@ import { of, from, empty } from "rxjs";
 import * as Actions from "./actionCreators";
 import * as Selectors from "./selectors";
 import * as Utils from "../utils";
-import { filter, switchMap, map, tap } from "rxjs/operators";
+import { filter, switchMap, map } from "rxjs/operators";
 import { search } from "../algolia";
 
 const urlChangedEpic = actions =>
   actions.pipe(
     filter(action => action.type === "URL_CHANGED"),
     switchMap(action => {
-      if (action.location.pathname == "/about/") {
+      if (action.location.pathname === "/about/") {
         return of(Actions.requestedAboutPage());
       }
       const params = new URLSearchParams(action.location.search);