Added new lines between steps for better readability

Author: faizanoor3001

InternalDocs/interpreter.md

@@ -558,11 +558,15 @@ at the very least, a 16-bit counter is needed.
 
 3. Write the specializing function itself in [Python/specialize.c ](../Python/specialize.c). 
    Refer to any other function in that file for the format.
+
 4. Remember to update operation stats by calling `add_stat_dict` in 
    [Python/specialize.c ](../Python/specialize.c).
+
 5. Add the cache layout in [Lib/opcode.py](../Lib/opcode.py) so that Python's 
    dis module will know how to represent it properly.
+
 6. Bump magic number in  [Include/core/pycore_magic_number.h](../Include/internal/pycore_magic_number.h).
+
 7. Run ``make regen-all`` on `*nix` or `build.bat --regen` on Windows.