Document config updates in minetest.conf.example.

minetest.conf.example

@@ -1104,7 +1104,7 @@
#    The maximum total count is calculated dynamically:
#    max_total = ceil((#clients + max_users) * per_client / 4)
#    type: int
# max_simultaneous_block_sends_per_client = 10
# max_simultaneous_block_sends_per_client = 40

#    To reduce lag, block transfers are slowed down when a player is building something.
#    This determines how long they are slowed down after placing or removing a node.
@@ -2896,21 +2896,21 @@

#    Maximum number of blocks that can be queued for loading.
#    type: int
# emergequeue_limit_total = 256
# emergequeue_limit_total = 512

#    Maximum number of blocks to be queued that are to be loaded from file.
#    Set to blank for an appropriate amount to be chosen automatically.
#    type: int
# emergequeue_limit_diskonly = 32
# emergequeue_limit_diskonly = 64

#    Maximum number of blocks to be queued that are to be generated.
#    Set to blank for an appropriate amount to be chosen automatically.
#    type: int
# emergequeue_limit_generate = 32
# emergequeue_limit_generate = 64

#    Number of emerge threads to use. Make this field blank, or increase this number
#    Number of emerge threads to use. Make this field blank or 0, or increase this number
#    to use multiple threads. On multiprocessor systems, this will improve mapgen speed greatly
#    at the cost of slightly buggy caves.
#    type: int
# num_emerge_threads = 1
# num_emerge_threads = 0