Fixes to the getting started tutorial

content/tutorials/text/getting-started/index.mdx

@@ -32,7 +32,7 @@ Welcome to Processing! Start by visiting [https://processing.org/download](https
 
   `./processing`
 
-With any luck, the main Processing window will now be visible. Everyone's setup is different, so if the program didn't start, or you're otherwise stuck, visit the troubleshooting page for possible solutions.
+With any luck, the main Processing window will now be visible. Everyone's setup is different, so if the program didn't start, or you're otherwise stuck, visit the [troubleshooting](https://github.com/processing/processing4/wiki/Troubleshooting) page for possible solutions.
 
 ![The Processing Development Environment.](./Fig_02_01.png)
 
@@ -73,7 +73,7 @@ void draw() {
 }
 ```
 
-This program creates a window that is 480 pixels wide and 120 pixels high, and then starts drawing white circles at the position of the mouse. When a mouse button is pressed, the circle color changes to black. We'll explain more about the elements of this program in detail later. For now, run the code, move the mouse, and click to see what it does. While the sketch is running, the Run button will change to a square “stop” icon, which you can click to halt the sketch.
+This program creates a window that is 480 pixels wide and 120 pixels high, and then starts drawing white circles at the position of the mouse. When a mouse button is pressed, the circle color changes to black. We'll explain more about the elements of this program in detail later. For now, run the code, move the mouse, and click to see what it does. While the sketch is running, the Run button will change color. You can click the square “stop” icon to halt the sketch.
 
 ## Show
 
@@ -105,8 +105,8 @@ Learning how to program involves exploring lots of code: running, altering, brea
 
 To open an example, select Examples from the File menu and double-click an example's name to open it. The examples are grouped into categories based on their function, such as Form, Motion, and Image. Find an interesting topic in the list and try an example.
 
-When looking at code in the editor, you'll see that functions like ellipse() and fill() have a different color from the rest of the text. If you see a function that you’re unfamiliar with, select the text, and then click "Find in Reference" from the Help menu. You can also right-click the text (or Ctrl-click on a Mac) and choose "Find in Reference" from the menu that appears. This will open a web browser and show the reference for that function. In addition, you can view the full documentation for the software by selecting Reference from the Help menu.
+When looking at code in the editor, you'll see that functions like `ellipse()` and `fill()` have a different color from the rest of the text. If you see a function that you’re unfamiliar with, select the text, and then click "Find in Reference" from the Help menu. You can also right-click the text (or Ctrl-click on a Mac) and choose "Find in Reference" from the menu that appears. This will open a web browser and show the reference for that function. In addition, you can view the full documentation for the software by selecting Reference from the Help menu.
 
-The Processing Reference explains every code element with a description and examples. The Reference programs are much shorter (usually four or five lines) and easier to follow than the longer code found in the Examples folder. We recommend keeping the Reference open while you’re reading this book and while you’re programming. It can be navigated by topic or alphabetically; sometimes it’s fastest to do a text search within your browser window.
+The Processing [Reference](/reference) explains every code element with a description and examples. The Reference programs are much shorter (usually four or five lines) and easier to follow than the longer code found in the Examples folder. We recommend keeping the Reference open while you’re programming. It can be navigated by topic or alphabetically; sometimes it’s fastest to do a text search within your browser window.
 
-The Reference was written with the beginner in mind; we hope that we’ve made it clear and understandable. We’re grateful to the many people who’ve spotted errors over the years and reported them. If you think you can improve a reference entry or you find a mistake, please let us know by clicking the link at the top of each reference page.
+The Reference was written with the beginner in mind; we hope that we’ve made it clear and understandable. We’re grateful to the many people who’ve spotted errors over the years and reported them. If you think you can improve a reference entry or you find a mistake on this website, please [let us know](https://github.com/processing/processing-website/issues).