Update for latest canary + prettier

src/layouts/default.js

@@ -0,0 +1,74 @@
+import React from "react"
+import Link from "gatsby-link"
+import { Container } from "react-responsive-grid"
+
+import { rhythm, scale } from "../utils/typography"
+
+class Template extends React.Component {
+  render() {
+    const { location, children } = this.props
+    let header
+    if (location.pathname === "/") {
+      header = (
+        <h1
+          style={{
+            ...scale(1.5),
+            marginBottom: rhythm(1.5),
+            marginTop: 0,
+          }}
+        >
+          <Link
+            style={{
+              boxShadow: "none",
+              textDecoration: "none",
+              color: "inherit",
+            }}
+            to={"/"}
+          >
+            Gatsby Starter Blog
+          </Link>
+        </h1>
+      )
+    } else {
+      header = (
+        <h3
+          style={{
+            fontFamily: "Montserrat, sans-serif",
+            marginTop: 0,
+            marginBottom: rhythm(-1),
+          }}
+        >
+          <Link
+            style={{
+              boxShadow: "none",
+              textDecoration: "none",
+              color: "inherit",
+            }}
+            to={"/"}
+          >
+            Gatsby Starter Blog
+          </Link>
+        </h3>
+      )
+    }
+    return (
+      <Container
+        style={{
+          maxWidth: rhythm(24),
+          padding: `${rhythm(1.5)} ${rhythm(3 / 4)}`,
+        }}
+      >
+        {header}
+        {children}
+      </Container>
+    )
+  }
+}
+
+Template.propTypes = {
+  children: React.PropTypes.any,
+  location: React.PropTypes.object,
+  route: React.PropTypes.object,
+}
+
+export default Template