Lobby: Document set signs

This documents the function responsible for setting signs in the lobby.

Work towards #5

data/bingo/functions/lobby/set_signs.mcfunction

@@ -1,3 +1,16 @@
+#> bingo:lobby/set_signs
+#
+# Places all the signs in the lobby.
+#
+# This is needed, since players in the lobby will be in survival mode in order
+# to support trophy collection like in older Minecraft: Bingo.
+#
+# Hence, signs could potentially be broken by a player and we just place them
+# every tick to make sure everything keeps working.
+#
+# @within function bingo:lobby/tick
+# @context dimension bingo:lobby
+
 setblock -1 65 -6 minecraft:warped_wall_sign[facing=east]{Text1: '{"translate":"bingo.lobby.card_generation.from_seed.sign.line1", "bold":true, "color":"#8eedeb", "clickEvent":{"action":"run_command","value":"/function bingo:card_generation/random_card"}}', Text2:'{"translate":"bingo.lobby.card_generation.from_seed.sign.line2", "bold":true, "color":"#8eedeb"}', Text3:'{"translate":"bingo.lobby.card_generation.from_seed.sign.line3", "bold":true, "color":"#8eedeb"}', Text4:'{"translate":"bingo.lobby.card_generation.from_seed.sign.line4", "bold":true, "color":"#8eedeb"}'}
 
 setblock 1 65 -6 minecraft:warped_wall_sign[facing=west]{Text1: '{"translate":"bingo.lobby.card_generation.random_card.sign.line1", "bold":true, "color":"#8eedeb", "clickEvent":{"action":"run_command","value":"/tellraw @s [{\\"translate\\": \\"bingo.lobby.card_generation.from_seed.instructions\\", \\"with\\": [{\\"translate\\": \\"bingo.lobby.card_generation.from_seed.instructions.link\\", \\"color\\":\\"#00c3ff\\", \\"clickEvent\\": {\\"action\\": \\"suggest_command\\", \\"value\\": \\"/trigger bingo.seed set \\"}}]}, \\"\\\\n\\", {\\"translate\\": \\"bingo.lobby.card_generation.from_seed.explanation\\", \\"italic\\": true, \\"color\\": \\"gray\\"}]"}}', Text2:'{"translate":"bingo.lobby.card_generation.random_card.sign.line2", "bold":true, "color":"#8eedeb"}', Text3:'{"translate":"bingo.lobby.card_generation.random_card.sign.line3", "bold":true, "color":"#8eedeb"}', Text4:'{"translate":"bingo.lobby.card_generation.random_card.sign.line4", "bold":true, "color":"#8eedeb"}'}