docs: Update code snippets in README files (#267)

Adding correct languages to readmes code snippets to enable syntax
highlighting

templates/console_readme_suffix.md

@@ -13,13 +13,13 @@ If you would like to develop locally, you can pull the existing Actor from Apify
 
     **Using Homebrew**
 
-    ```
+    ```bash
     brew install apify-cli
     ```
 
     **Using NPM**
 
-    ```
+    ```bash
     npm -g install apify-cli
     ```
 
@@ -31,7 +31,7 @@ If you would like to develop locally, you can pull the existing Actor from Apify
 
     This command will copy the Actor into the current directory on your local machine.
 
-    ```
+    ```bash
     apify pull <ActorId>
     ```
 

templates/js-crawlee-puppeteer-chrome/README.md

@@ -26,7 +26,7 @@ If you're looking for examples or want to learn more visit:
     - Create a new router instance with `new createPuppeteerRouter()`
     - Define default handler that will be called for all URLs that are not handled by other handlers by adding `router.addDefaultHandler(() => { ... })`
     - Define additional handlers - here you can add your own handling of the page
-        ```
+        ```javascript
         router.addHandler('detail', async ({ request, page, log }) => {
             const title = await page.title();
             // You can add your own page handling here

templates/js-start/README.md

@@ -19,9 +19,8 @@ The scraped data in this template are page headings but you can easily edit the
 3. `cheerio.load(response.data)` loads the page data and enables parsing the headings
 4. This parses the headings from the page and here you can edit the code to parse whatever you need from the page
 
-    ```
+    ```javascript
     $("h1, h2, h3, h4, h5, h6").each((_i, element) => {...});
-    
     ```
 
 5. `Actor.pushData(headings)` stores the headings in the dataset

templates/local_readme_suffix.md

@@ -2,7 +2,7 @@
 
 For complete information [see this article](https://docs.apify.com/platform/actors/development#build-actor-locally). To run the actor use the following command:
 
-```
+```bash
 apify run
 ```
 
@@ -21,13 +21,13 @@ You can also deploy the project on your local machine to Apify without the need
 
 1. Log in to Apify. You will need to provide your [Apify API Token](https://console.apify.com/account/integrations) to complete this action.
 
-    ```
+    ```bash
     apify login
     ```
 
 2. Deploy your Actor. This command will deploy and build the Actor on the Apify Platform. You can find your newly created Actor under [Actors -> My Actors](https://console.apify.com/actors?tab=my).
 
-    ```
+    ```bash
     apify push
     ```
 

templates/ts-crawlee-puppeteer-chrome/README.md

@@ -26,7 +26,7 @@ If you're looking for examples or want to learn more visit:
     - Create a new router instance with `new createPuppeteerRouter()`
     - Define default handler that will be called for all URLs that are not handled by other handlers by adding `router.addDefaultHandler(() => { ... })`
     - Define additional handlers - here you can add your own handling of the page
-        ```
+        ```javascript
         router.addHandler('detail', async ({ request, page, log }) => {
             const title = await page.title();
             // You can add your own page handling here

templates/ts-start-bun/README.md

@@ -19,9 +19,8 @@ The scraped data in this template are page headings but you can easily edit the
 3. `cheerio.load(response.data)` loads the page data and enables parsing the headings
 4. This parses the headings from the page and here you can edit the code to parse whatever you need from the page
 
-    ```
+    ```javascript
     $("h1, h2, h3, h4, h5, h6").each((_i, element) => {...});
-    
     ```
 
 5. `Actor.pushData(headings)` stores the headings in the dataset

templates/ts-start/README.md

@@ -19,9 +19,8 @@ The scraped data in this template are page headings but you can easily edit the
 3. `cheerio.load(response.data)` loads the page data and enables parsing the headings
 4. This parses the headings from the page and here you can edit the code to parse whatever you need from the page
 
-    ```
+    ```javascript
     $("h1, h2, h3, h4, h5, h6").each((_i, element) => {...});
-    
     ```
 
 5. `Actor.pushData(headings)` stores the headings in the dataset