Update the documentation [skip ci]

docs/installation.md

@@ -26,6 +26,6 @@ npm install @cedx/akismet
 ### 2. Import it
 Now in your [JavaScript](https://developer.mozilla.org/docs/Web/JavaScript) code, you can use:
 
-```javascript
+```js
 import * as akismet from "@cedx/akismet";
 ```

docs/testing.md

@@ -10,7 +10,7 @@ or `Author.email` set to `"[email protected]"`. Populate all o
 The Akismet API will always return a `CheckResult.spam` response to a valid request with one of those values.
 If you receive anything else, something is wrong in your client, data, or communications.
 
-```javascript
+```js
 import console from "node:console";
 import {Author, Blog, Client, Comment} from "@cedx/akismet";
 
@@ -34,7 +34,7 @@ and all other required fields populated with typical values.
 
 The Akismet API will always return a `CheckResult.ham` response. Any other response indicates a data or communication problem.
 
-```javascript
+```js
 import console from "node:console";
 import {Author, AuthorRole, Blog, Client, Comment} from "@cedx/akismet";
 
@@ -58,7 +58,7 @@ Enable the `Client.isTest` option in your tests.
 That will tell Akismet not to change its behaviour based on those API calls: they will have no training effect.
 That means your tests will be somewhat repeatable, in the sense that one test won't influence subsequent calls.
 
-```javascript
+```js
 import {Author, Blog, Client, Comment} from "@cedx/akismet";
 
 const blog = new Blog({url: "https://www.yourblog.com"});

docs/usage/check_comment.md

@@ -3,7 +3,7 @@ This is the call you will make the most. It takes a number of arguments and char
 and then returns a thumbs up or thumbs down. **Performance can drop dramatically if you choose to exclude data points.**
 The more data you send Akismet about each comment, the greater the accuracy. We recommend erring on the side of including too much data.
 
-```javascript
+```js
 Client.checkComment(comment: Comment): Promise<CheckResult>
 ```
 
@@ -32,7 +32,7 @@ See [Response Error Codes](https://akismet.com/developers/errors) for more infor
 
 ## Example
 
-```javascript
+```js
 import console from "node:console";
 import {Author, Blog, CheckResult, Client, Comment, CommentType} from "@cedx/akismet";
 

docs/usage/submit_ham.md

@@ -2,7 +2,7 @@
 This call is intended for the submission of false positives - items that were incorrectly classified as spam by Akismet.
 It takes identical arguments as [comment check](usage/check_comment.md) and [submit spam](usage/submit_spam.md).
 
-```javascript
+```js
 Client.submitHam(comment: Comment): Promise<void>
 ```
 
@@ -30,7 +30,7 @@ See [Response Error Codes](https://akismet.com/developers/errors) for more infor
 
 ## Example
 
-```javascript
+```js
 import console from "node:console";
 import {Author, Blog, Client, Comment} from "@cedx/akismet";
 

docs/usage/submit_spam.md

@@ -1,7 +1,7 @@
 # Submit spam
 This call is for submitting comments that weren't marked as spam but should have been.
 
-```javascript
+```js
 Client.submitSpam(comment: Comment): Promise<void>
 ```
 
@@ -32,7 +32,7 @@ See [Response Error Codes](https://akismet.com/developers/errors) for more infor
 
 ## Example
 
-```javascript
+```js
 import console from "node:console";
 import {Author, Blog, Client, Comment} from "@cedx/akismet";
 

docs/usage/verify_key.md

@@ -2,7 +2,7 @@
 Key verification authenticates your API key before calling the [comment check](usage/check_comment.md),
 [submit spam](usage/submit_spam.md) or [submit ham](usage/submit_ham.md) methods.
 
-```javascript
+```js
 Client.verifyKey(): Promise<boolean>
 ```
 
@@ -26,7 +26,7 @@ See [Response Error Codes](https://akismet.com/developers/errors) for more infor
 
 ## Example
 
-```javascript
+```js
 import console from "node:console";
 import {Blog, Client} from "@cedx/akismet";