update identation

doc/reference/asset.rst

@@ -11,12 +11,12 @@ A model card is a .YAML file that contains information about a model and instruc
 A store is a place where all the model cards are stored. By default, fairseq2 will look up the following stores:
 
 * System asset store: Cards that are shared by all users. By default, the system store is `/etc/fairseq2/assets`,
-but this can be changed via the environment variable `FAIRSEQ2_ASSET_DIR`
+    but this can be changed via the environment variable `FAIRSEQ2_ASSET_DIR`
 
 * User asset store: Cards that are only available to the user. By default, the user store is 
-`~/.config/fairseq2/assets`, but this can be changed via the environment variable `FAIRSEQ2_USER_ASSET_DIR`
+    `~/.config/fairseq2/assets`, but this can be changed via the environment variable `FAIRSEQ2_USER_ASSET_DIR`
 
 * (Internal only) Meta asset store: For Meta employees' convenience, we set up a central store that contains
-model cards with e.g intermediate checkpoints, extra internal information etc. This store is registered automatically
-when one logs into the Fair cluster. If you wish not to use this central store, set the environment variable 
-`NO_FAIR_CARD=ON`
+    model cards with e.g intermediate checkpoints, extra internal information etc. This store is registered automatically
+    when one logs into the Fair cluster. If you wish not to use this central store, set the environment variable 
+    `NO_FAIR_CARD=ON`