Update README.md

[Zemogiter]

Included lib-curl as a requirement for successful build. Without it I am getting this error:

make
sprites.t3s
Used lz11 for compression
camera.c
colors.c
conversion.c
draw.c
entries_list.c
fs.c
/home/jonaszp/Anemone3DS/source/fs.c: In function 'zip_file_to_buf':
/home/jonaszp/Anemone3DS/source/fs.c:189:33: warning: 'calloc' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Wcalloc-transposed-args]
  189 |     char * path = calloc(sizeof(char), len * sizeof(u16));
      |                                 ^~~~
/home/jonaszp/Anemone3DS/source/fs.c:189:33: note: earlier argument should specify number of elements, later size of each element
loading.c
main.c
/home/jonaszp/Anemone3DS/source/main.c: In function 'main':
/home/jonaszp/Anemone3DS/source/main.c:442:13: warning: unused variable 'kUp' [-Wunused-variable]
  442 |         u32 kUp = hidKeysUp();
      |             ^~~
/home/jonaszp/Anemone3DS/source/main.c:1044:29: warning: 'current_entry' may be used uninitialized [-Wmaybe-uninitialized]
 1044 |                             splash_install(current_entry);
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/jonaszp/Anemone3DS/source/main.c:612:19: note: 'current_entry' was declared here
  612 |         Entry_s * current_entry = &current_list->entries[selected_entry];
      |                   ^~~~~~~~~~~~~
music.c
remote.c
/home/jonaszp/Anemone3DS/source/remote.c:28:10: fatal error: curl/curl.h: No such file or directory
   28 | #include <curl/curl.h>
      |          ^~~~~~~~~~~~~
compilation terminated.
make[1]: *** [/opt/devkitpro/devkitARM//base_rules:39: remote.o] Error 1
make: *** [Makefile:238: all] Error 2