bt spec: clarify a node ID is not a hash

i2p2www/pages/site/docs/applications/bittorrent.html

@@ -264,8 +264,8 @@ In a response, the "values" key is a list of strings, each containing a single c
 {%- endtrans %}</p>
 
 <p>{% trans -%}
-Compact node info is 54 bytes (20 byte SHA1 Hash + 32 byte SHA256 Hash + 2 byte port)
-instead of 20 byte SHA1 Hash + 4 byte IP + 2 byte port.
+Compact node info is 54 bytes (20 byte Node ID + 32 byte SHA256 Hash + 2 byte port)
+instead of 20 byte Node ID + 4 byte IP + 2 byte port.
 In a response, the "nodes" key is a
 single byte string with concatenated compact node info.
 {%- endtrans %}</p>