Add the github-linguist package

This commit only adds a single package and all of its transitive
dependencies. The github-linguist package will be used for counting
lines of code as a baseline for databases we are analyzing.

node_modules/fs-extra/docs/readJson-sync.md

@@ -0,0 +1,33 @@
+# readJsonSync(file, [options])
+
+Reads a JSON file and then parses it into an object. `options` are the same
+that you'd pass to [`jsonFile.readFileSync`](https://github.com/jprichardson/node-jsonfile#readfilesyncfilename-options).
+
+**Alias:** `readJSONSync()`
+
+- `file` `<String>`
+- `options` `<Object>`
+
+## Example:
+
+```js
+const fs = require('fs-extra')
+
+const packageObj = fs.readJsonSync('./package.json')
+console.log(packageObj.version) // => 2.0.0
+```
+
+---
+
+`readJsonSync()` can take a `throws` option set to `false` and it won't throw if the JSON is invalid. Example:
+
+```js
+const fs = require('fs-extra')
+
+const file = '/tmp/some-invalid.json'
+const data = '{not valid JSON'
+fs.writeFileSync(file, data)
+
+const obj = fs.readJsonSync(file, { throws: false })
+console.log(obj) // => null
+```