Update guides/da-block-time.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: yarikbratashchuk

guides/da-block-time.md

@@ -1,6 +1,6 @@
 # How to configure DA chain block syncing time
 
-The `--rollkit.da_block_time` flag is used to configure the time in seconds that the rollup will wait for a block to be synced from the DA chain. 
+The `--rollkit.da_block_time` flag is used to configure the time in seconds that the rollup will wait for a block to be synced from the DA chain.
 
 ```bash
 --rollkit.da_block_time duration