Make some misc formatting/housekeeping corrections

Author: ISSOtm

src/part1/assembly.md

@@ -52,7 +52,7 @@ Due to CPU limitations, not all operand combinations are valid for `ld` and many
 
 ::: tip:🤔
 
-RGBDS has an [instruction reference](https://rgbds.gbdev.io/docs/v0.5.1/gbz80.7) worth bookmarking, and you can also consult it locally with `man 7 gbz80` if RGBDS is installed on your machine (except Windows...).
+RGBDS has an [instruction reference](https://rgbds.gbdev.io/docs/gbz80.7) worth bookmarking, and you can also consult it locally with `man 7 gbz80` if RGBDS is installed on your machine (except Windows...).
 The descriptions there are more succinct, since they're intended as reminders, not as tutorials.
 
 :::

src/part1/jumps.md

@@ -78,7 +78,7 @@ Since `bc` contains the amount of bytes that still need to be copied, it's trivi
 
 :::
 
-`ld a, b` and `or c` "bitwise OR" `b` and `c` together; it's enough to know for now that it leaves 0 in `a` if and only if `bc` == 0.
+`ld a, b` and `or a, c` "bitwise OR" `b` and `c` together; it's enough to know for now that it leaves 0 in `a` if and only if `bc` == 0.
 And `or` updates the Z flag!
 So, after line {{#line_no_of "^\s*or a, c" ../assets/hello-world.asm:memcpy}}, the Z flag is set if and only if `bc` == 0, that is, if we should exit the loop.
 

src/part1/memory.md

@@ -145,4 +145,4 @@ Mask ROM is created by literally punching holes into a layer of silicon using ac
 Good luck writing to that!
 <br>
 "ROM" is sometimes (mis)used to refer to "persistent memory" chips, such as flash memory, whose write functionality was disabled.
-Most bootleg / "repro" Game Boy cartridges you can find nowadays actually contain flash; this is why you can reflash them using specialized hardware, but not original cartridges.
+Most bootleg / "repro" Game Boy cartridges you can find nowadays actually contain flash; this is why you can reflash them using specialized hardware, but original cartridges cannot be.

src/part1/setup.md

@@ -57,7 +57,7 @@ This is because devkitPro, a popular homebrew development bundle, includes MSYS2
 ## Code editor
 
 Any code editor is fine; I personally use [Sublime Text](https://www.sublimetext.com) with its [RGBDS syntax package](https://packagecontrol.io/packages/RGBDS); however, you can use any text editor, including Notepad, if you're crazy enough.
-Awesome GBDev has [a section on syntax highlighting packages](https://gbdev.io/resources.html#syntax-highlighting-packages), see there if your favorite editor supports RGBDS.
+Awesome GBDev has [a section on syntax highlighting packages](https://gbdev.io/resources#syntax-highlighting-packages), see there if your favorite editor supports RGBDS.
 
 ## Emulator
 

src/part1/toolchain.md

@@ -12,7 +12,7 @@ It is responsible for reading the source code (in our case, `hello-world.asm` an
 RGBASM does not always have enough information to produce a full ROM, so it does most of the work, and stores its intermediary results in what's known as *object files* (hence the `.o` extension).
 
 RGBLINK is a *linker*.
-Its job is taking object files (or, like in our case, just one), and "linking" them into a ROM.
+Its job is taking object files (or, like in our case, just one), and "linking" them into a ROM, which is to say: filling the aforementioned "holes".
 RGBLINK's purpose may not be obvious with programs as simple as this Hello World, but it will become much clearer in Part Ⅱ.
 
 So: Source code → `rgbasm` → Object files → `rgblink` → ROM, right?

src/part1/tracing.md

@@ -20,7 +20,7 @@ Well, there are several syntaxes for Game Boy assembly, and BGB doesn't use RGBD
 We can fix that in the options, which we can access by either:
 - Right-clicking the screen and selecting "Options"
 - In the debugger, open the "Window" menu, and select "Options"
-- Press F11 while focusing either the screen or debugger
+- Press <kbd>F11</kbd> while focusing either the screen or debugger
 
 BGB has a *ton* of options, but don't worry, it's got good defaults, so we don't need to look at most of them for now.
 Select the "Debug" tab, and set "Disasm syntax" to "rgbds".