updated the short cut keys for opening inspect

Author: Sam Vitare

src/content/0/en/part0b.md

@@ -17,7 +17,7 @@ Open the [example application](https://studies.cs.helsinki.fi/exampleapp) in you
 
 The course material is done with the Chrome browser.
 
-**The 1st rule of web development**: Always keep the Developer Console open on your web browser. On macOS, open the console by pressing _F12_ or _option-cmd-i_ simultaneously. On Windows or Linux, open the console by pressing _F12_ or _ctrl-shift-i_ simultaneously. The console can also be opened via the [context menu](https://en.wikipedia.org/wiki/Menu_key).
+**The 1st rule of web development**: Always keep the Developer Console open on your web browser. On macOS, open the console by pressing _fn_-_F12_ or _option-cmd-i_ simultaneously. On Windows or Linux, open the console by pressing _Fn_-_F12_ or _ctrl-shift-i_ simultaneously. The console can also be opened via the [context menu](https://en.wikipedia.org/wiki/Menu_key).
 
 Remember to <i>always</i> keep the Developer Console open when developing web applications.
 
@@ -486,7 +486,7 @@ All of the data shown on the page was fetched with the HTML code generated by th
 
 The Notes page uses AJAX to fetch the notes data. Submitting the form still uses the traditional mechanism of submitting web forms.
 
-The application URLs reflect the old, carefree times. JSON data is fetched from the URL <https://studies.cs.helsinki.fi/exampleapp/data.json> and new notes are sent to the URL <https://studies.cs.helsinki.fi/exampleapp/new_note>.  
+The application URLs reflect the old, carefree times. JSON data is fetched from the URL <https://studies.cs.helsinki.fi/exampleapp/data.json> and new notes are sent to the URL <https://studies.cs.helsinki.fi/exampleapp/new_note>.
 Nowadays URLs like these would not be considered acceptable, as they don't follow the generally acknowledged conventions of [RESTful](https://en.wikipedia.org/wiki/Representational_state_transfer#Applied_to_web_services) APIs, which we'll look into more in [part 3](/en/part3).
 
 The thing termed AJAX is now so commonplace that it's taken for granted. The term has faded into oblivion, and the new generation has not even heard of it.
@@ -666,24 +666,24 @@ The diagram was made as a GitHub Markdown-file using the [Mermaid](https://docs.
 sequenceDiagram
     participant browser
     participant server
-    
+
     browser->>server: GET https://studies.cs.helsinki.fi/exampleapp/notes
     activate server
     server-->>browser: HTML document
     deactivate server
-    
+
     browser->>server: GET https://studies.cs.helsinki.fi/exampleapp/main.css
     activate server
     server-->>browser: the css file
     deactivate server
-    
+
     browser->>server: GET https://studies.cs.helsinki.fi/exampleapp/main.js
     activate server
     server-->>browser: the JavaScript file
     deactivate server
-    
+
     Note right of browser: The browser starts executing the JavaScript code that fetches the JSON from the server
-    
+
     browser->>server: GET https://studies.cs.helsinki.fi/exampleapp/data.json
     activate server
     server-->>browser: [{ "content": "HTML is easy", "date": "2023-1-1" }, ... ]