Replace YAML keys from int to str

Replace YAML metadata integer keys with strings, as the Hub does not support integers.
See: https://github.com/huggingface/datasets/issues/5275

README.md

@@ -9,7 +9,6 @@ license:
 - unknown
 multilinguality:
 - monolingual
-pretty_name: Food-101
 size_categories:
 - 10K<n<100K
 source_datasets:
@@ -19,6 +18,7 @@ task_categories:
 task_ids:
 - multi-class-image-classification
 paperswithcode_id: food-101
+pretty_name: Food-101
 dataset_info:
   features:
   - name: image
@@ -27,107 +27,107 @@ dataset_info:
     dtype:
       class_label:
         names:
-          0: apple_pie
-          1: baby_back_ribs
-          2: baklava
-          3: beef_carpaccio
-          4: beef_tartare
-          5: beet_salad
-          6: beignets
-          7: bibimbap
-          8: bread_pudding
-          9: breakfast_burrito
-          10: bruschetta
-          11: caesar_salad
-          12: cannoli
-          13: caprese_salad
-          14: carrot_cake
-          15: ceviche
-          16: cheesecake
-          17: cheese_plate
-          18: chicken_curry
-          19: chicken_quesadilla
-          20: chicken_wings
-          21: chocolate_cake
-          22: chocolate_mousse
-          23: churros
-          24: clam_chowder
-          25: club_sandwich
-          26: crab_cakes
-          27: creme_brulee
-          28: croque_madame
-          29: cup_cakes
-          30: deviled_eggs
-          31: donuts
-          32: dumplings
-          33: edamame
-          34: eggs_benedict
-          35: escargots
-          36: falafel
-          37: filet_mignon
-          38: fish_and_chips
-          39: foie_gras
-          40: french_fries
-          41: french_onion_soup
-          42: french_toast
-          43: fried_calamari
-          44: fried_rice
-          45: frozen_yogurt
-          46: garlic_bread
-          47: gnocchi
-          48: greek_salad
-          49: grilled_cheese_sandwich
-          50: grilled_salmon
-          51: guacamole
-          52: gyoza
-          53: hamburger
-          54: hot_and_sour_soup
-          55: hot_dog
-          56: huevos_rancheros
-          57: hummus
-          58: ice_cream
-          59: lasagna
-          60: lobster_bisque
-          61: lobster_roll_sandwich
-          62: macaroni_and_cheese
-          63: macarons
-          64: miso_soup
-          65: mussels
-          66: nachos
-          67: omelette
-          68: onion_rings
-          69: oysters
-          70: pad_thai
-          71: paella
-          72: pancakes
-          73: panna_cotta
-          74: peking_duck
-          75: pho
-          76: pizza
-          77: pork_chop
-          78: poutine
-          79: prime_rib
-          80: pulled_pork_sandwich
-          81: ramen
-          82: ravioli
-          83: red_velvet_cake
-          84: risotto
-          85: samosa
-          86: sashimi
-          87: scallops
-          88: seaweed_salad
-          89: shrimp_and_grits
-          90: spaghetti_bolognese
-          91: spaghetti_carbonara
-          92: spring_rolls
-          93: steak
-          94: strawberry_shortcake
-          95: sushi
-          96: tacos
-          97: takoyaki
-          98: tiramisu
-          99: tuna_tartare
-          100: waffles
+          '0': apple_pie
+          '1': baby_back_ribs
+          '2': baklava
+          '3': beef_carpaccio
+          '4': beef_tartare
+          '5': beet_salad
+          '6': beignets
+          '7': bibimbap
+          '8': bread_pudding
+          '9': breakfast_burrito
+          '10': bruschetta
+          '11': caesar_salad
+          '12': cannoli
+          '13': caprese_salad
+          '14': carrot_cake
+          '15': ceviche
+          '16': cheesecake
+          '17': cheese_plate
+          '18': chicken_curry
+          '19': chicken_quesadilla
+          '20': chicken_wings
+          '21': chocolate_cake
+          '22': chocolate_mousse
+          '23': churros
+          '24': clam_chowder
+          '25': club_sandwich
+          '26': crab_cakes
+          '27': creme_brulee
+          '28': croque_madame
+          '29': cup_cakes
+          '30': deviled_eggs
+          '31': donuts
+          '32': dumplings
+          '33': edamame
+          '34': eggs_benedict
+          '35': escargots
+          '36': falafel
+          '37': filet_mignon
+          '38': fish_and_chips
+          '39': foie_gras
+          '40': french_fries
+          '41': french_onion_soup
+          '42': french_toast
+          '43': fried_calamari
+          '44': fried_rice
+          '45': frozen_yogurt
+          '46': garlic_bread
+          '47': gnocchi
+          '48': greek_salad
+          '49': grilled_cheese_sandwich
+          '50': grilled_salmon
+          '51': guacamole
+          '52': gyoza
+          '53': hamburger
+          '54': hot_and_sour_soup
+          '55': hot_dog
+          '56': huevos_rancheros
+          '57': hummus
+          '58': ice_cream
+          '59': lasagna
+          '60': lobster_bisque
+          '61': lobster_roll_sandwich
+          '62': macaroni_and_cheese
+          '63': macarons
+          '64': miso_soup
+          '65': mussels
+          '66': nachos
+          '67': omelette
+          '68': onion_rings
+          '69': oysters
+          '70': pad_thai
+          '71': paella
+          '72': pancakes
+          '73': panna_cotta
+          '74': peking_duck
+          '75': pho
+          '76': pizza
+          '77': pork_chop
+          '78': poutine
+          '79': prime_rib
+          '80': pulled_pork_sandwich
+          '81': ramen
+          '82': ravioli
+          '83': red_velvet_cake
+          '84': risotto
+          '85': samosa
+          '86': sashimi
+          '87': scallops
+          '88': seaweed_salad
+          '89': shrimp_and_grits
+          '90': spaghetti_bolognese
+          '91': spaghetti_carbonara
+          '92': spring_rolls
+          '93': steak
+          '94': strawberry_shortcake
+          '95': sushi
+          '96': tacos
+          '97': takoyaki
+          '98': tiramisu
+          '99': tuna_tartare
+          '100': waffles
   splits:
   - name: train
     num_bytes: 3845865322