Merge 'Documentation Improvements'

See merge request !253

Documentation/bluetooth/file-transfer.rst

@@ -77,9 +77,11 @@ CHUNK_ACK:
 ===== ===
   0   1-4
 ----- ---
-  C   CRC
+  C   CRC(*)
 ===== ===
 
+CRC32 of the whole CHUNK packet including first byte, offset and payload.
+
 FINISH:
 
 === ===