Merge pull request #2965 from sulavaaa/patch-1

Update part0b.md mermaid syntax

Author: mluukkai

src/content/0/en/part0b.md

@@ -682,14 +682,14 @@ sequenceDiagram
     server-->>browser: the JavaScript file
     deactivate server
 
-    Note right of the browser: The browser starts executing the JavaScript code that fetches the JSON from the 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" }, ... ]
     deactivate server
 
-    Note right of the browser: The browser executes the callback function that renders the notes
+    Note right of browser: The browser executes the callback function that renders the notes
 ```
 
 **Create a similar diagram** depicting the situation where the user creates a new note on the page <https://studies.cs.helsinki.fi/exampleapp/notes> by writing something into the text field and clicking the <i>submit</i> button.