Install react bootstrap.

app/package.json

@@ -5,6 +5,7 @@
   "version": "0.1.0",
   "author": "Kyle Mathews <mathews.kyle@gmail.com>",
   "dependencies": {
+    "bootstrap": "^4.5.2",
     "gatsby": "^2.23.0",
     "gatsby-image": "^2.2.27",
     "gatsby-plugin-manifest": "^2.2.21",
@@ -17,6 +18,7 @@
     "gatsby-transformer-sharp": "^2.2.21",
     "prop-types": "^15.7.2",
     "react": "^16.10.2",
+    "react-bootstrap": "^1.3.0",
     "react-dom": "^16.10.2",
     "react-helmet": "^5.2.1",
     "react-star-rating-component": "^1.4.1",