docs/cli: update docs with inspect command

Signed-off-by: jsvisa <delweng@gmail.com>

docs/cli/README.md

@@ -30,8 +30,6 @@
 
 - [```fingerprint```](./fingerprint.md)
 
-- [```inspect-ancient-db```](./inspect-ancient-db.md)
-
 - [```peers```](./peers.md)
 
 - [```peers add```](./peers_add.md)
@@ -48,6 +46,8 @@
 
 - [```snapshot```](./snapshot.md)
 
+- [```snapshot inspect-ancient-db```](./snapshot_inspect-ancient-db.md)
+
 - [```snapshot prune-block```](./snapshot_prune-block.md)
 
 - [```snapshot prune-state```](./snapshot_prune-state.md)

docs/cli/snapshot_inspect-ancient-db.md

@@ -0,0 +1,19 @@
+# Inspect ancient DB for block pruning
+
+The ```bor snapshot inspect-ancient-db``` command will inspect few fields in the ancient datastore using the given datadir location.
+
+
+This command prints the following information which is useful for block-pruning rounds:
+
+1. Offset / Start block number (from kvDB).
+2. Amount of items in the ancientdb.
+3. Last block number written in ancientdb.
+
+
+## Options
+
+- ```datadir```: Path of the data directory to store information
+
+- ```keystore```: Path of the data directory to store keys
+
+- ```datadir.ancient```: Path of the old ancient data directory