[doc] Bump Format Spec Version

doc/zstd_compression_format.md

@@ -16,7 +16,7 @@ Distribution of this document is unlimited.
 
 ### Version
 
-0.3.1 (25/10/18)
+0.3.2 (17/07/19)
 
 
 Introduction
@@ -1653,6 +1653,7 @@ or at least provide a meaningful error code explaining for which reason it canno
 
 Version changes
 ---------------
+- 0.3.2 : remove additional block size restriction on compressed blocks
 - 0.3.1 : minor clarification regarding offset history update rules
 - 0.3.0 : minor edits to match RFC8478
 - 0.2.9 : clarifications for huffman weights direct representation, by Ulrich Kunitz