basic doc additions

CHANGELOG.md

 # Revision history for gbs-downloader
 
-## 0.1.0.0 -- YYYY-mm-dd
+## 0.1.0.0 -- 2023-08-17
 
 * First version. Released on an unsuspecting world.
+* Basic support for loading storage service announcements for server discovery.
+* Basic support for downloading the contents associated with a CHK or SDMF read capability.
+  * CHK and SDMF directories are also supported.

README.md

@@ -8,6 +8,7 @@ It aims for bit-for-bit compatibility with the original Python implementation.
 ### What is the current state?
 
 * It can download immutable and mutable shares from Great Black Swamp storage servers.
+  * It *does not* cryptographically verify the identity of servers it communicates with.
 * It can interpret, decode, and decrypt the data for CHK- and SDMF-encoded shares to recover the plaintext.
 
 ## Why does it exist?