Remove md hints because the static site cannot handle them

packages/sra-api/src/md/introduction.md

@@ -6,13 +6,13 @@ Use the [sra-report](https://github.com/0xProject/0x-monorepo/tree/development/p
 
 The [JSON schemas](http://json-schema.org/) for the API payloads and responses can be found in [@0xproject/json-schemas](https://github.com/0xProject/0x.js/tree/development/packages/json-schemas). Examples of each payload and response can be found in the library's [test suite](https://github.com/0xProject/0x.js/blob/development/packages/json-schemas/test/schema_test.ts#L1).
 
-```bash
+```
 npm install @0xproject/json-schemas --save
 ```
 
 You can easily validate your API's payloads and responses using the [@0xproject/json-schemas](https://github.com/0xProject/0x.js/tree/development/packages/json-schemas) package:
 
-```js
+```
 import {SchemaValidator, ValidatorResult, schemas} from '@0xproject/json-schemas';
 
 const {relayerApiTokenPairsResponseSchema} = schemas;
@@ -28,7 +28,7 @@ const validatorResult: ValidatorResult = validator.validate(tokenPairsResponse,
 
 Requests that return potentially large collections should respond to the **?page** and **?per_page** parameters. For example:
 
-```bash
+```
 $ curl https://api.example-relayer.com/v2/asset_pairs?page=3&per_page=20
 ```
 
@@ -40,7 +40,7 @@ These requests include the [`/v2/asset_pairs`](#operation/getAssetPairs), [`/v2/
 
 # Network Id
 All requests should be able to specify a **?networkId** query param for all supported networks. For example:
-```bash
+```
 $ curl https://api.example-relayer.com/v2/asset_pairs?networkId=1
 ```
 If the query param is not provided, it should default to **1** (mainnet).