Fix broken links to RGBDS documentation

See gbdev/rgbds-www@ee95db6
for context

Author: ISSOtm

src/Memory_Map.md

@@ -25,7 +25,7 @@ The following addresses are supposed to be used as jump vectors:
 -   Interrupts: 0040, 0048, 0050, 0058, 0060
 
 However, this memory area (0000-00FF) may be used for any other purpose in case that your
-program doesn't use any (or only some) [`rst`](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7/#RST_vec) instructions or interrupts. `rst`
+program doesn't use any (or only some) [`rst`](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#RST_vec) instructions or interrupts. `rst`
 is a 1-byte instruction that works similarly to the 3-byte `call` instruction, except
 that the destination address is restricted. Since it is 1-byte sized,
 it is also slightly faster.

src/The_Cartridge_Header.md

@@ -6,7 +6,7 @@ The cartridge header provides the following information about the game itself an
 ## 0100-0103 — Entry point
 
 After displaying the Nintendo logo, the built-in [boot ROM](<#Power-Up Sequence>) jumps to the address `$0100`, which should then jump to the actual main program in the cartridge.
-Most commercial games fill this 4-byte area with a [`nop` instruction](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7/#NOP) followed by a [`jp $0150`](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7/#JP_n16).
+Most commercial games fill this 4-byte area with a [`nop` instruction](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#NOP) followed by a [`jp $0150`](https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#JP_n16).
 
 ## 0104-0133 — Nintendo logo