README.md - adds guide to fix lack of spacing on vscode

I don't know if this happens to anyone else but if I don't explicitly set my
"terminal.integrated.letterSpacing" to 1 the font will render like there is a
zero (or a -1) on the spacing inside the VSCode terminal window.

To fix it we just need to set the property "terminal.integrated.letterSpacing"
to 1 and font will render properly.

This commit adds a quick guide (with screenshots) about how to fix the issue
described above.

README.md

@@ -156,6 +156,23 @@ will want to use CozetteVector there. In applications that do support bitmap
 fonts, you will want to use the normal, bitmap Cozette (unless it's too
 small for you, in which case, CozetteVector scales better).
 
+#### VSCode Letter Spacing
+
+Sometimes the font might render without proper space betweening the characters (font size set to 13):
+
+![vscode-before-letterspacing](https://github.com/user-attachments/assets/a26eab50-a92e-4a9d-b72f-bbdfcd8b7be7)
+
+To fix this you need to set (in your settings):
+- terminal.integrated.letterSpacing to 1
+
+![vscode-settings-fix-incorrect-letterspacing](https://github.com/user-attachments/assets/1936c07a-f45b-4476-8d49-bd489ff9b9ae)
+
+After that your terminal should look like this (font size set to 13):
+
+![vscode-after-letterspacing](https://github.com/user-attachments/assets/dbd9e722-8503-45cd-aac3-c8fcc9fc2c1e)
+
+_Note: VSCode also provides the option editor.letterSpacing which adjusts the spacing for the file editor._
+
 #### Kitty
 
 **[4e554c4c](https://github.com/4e554c4c) made [an AUR package for `kitty` patched to support bitmap fonts](https://aur.archlinux.org/packages/kitty-bitmap/).**