Update README

README.md

@@ -49,10 +49,13 @@ We call `unref` to ensure the scheduled scans to not prevent your application fr
 
 - [Installation](#installation)
 - [API](#api)
-  - [Constructor](#Constructor)
+  - [Constructor](#scanneroptions--scanneroptions)
   - [init](#init--promise)
   - [scan](#scan--promise)
   - [Stats](#stats)
+- [Contributing](#contributing)
+- [License](#license)
+
 
 ### Installation
 
@@ -83,15 +86,15 @@ import { Scanner } from 'pg-scanner';
 | config  | No       | A configuration object which is passed directly to [node-pg](https://www.npmjs.com/package/pg). Alternatively, you can use [environment variables](https://node-postgres.com/features/connecting#environment-variables) if you prefer. |
 | filter  | No       | A function for filtering out unwanted tables. It will be called with an object with a table and schema property and should return truthy if the table is to be included in the statistics                                              |
 
-### init() : Promise<void>
+### init() : Promise&lt;void&gt;
 
 ```js
 await scanner.init();
 ```
 
 The init method is responsible for initialising the scanner wise baseline statistics. It will error if called repeatedly.
 
-### scan() : Promise<Stats>
+### scan() : Promise&lt;Stats&gt;
 
 ```js
 await scanner.scan();