add missing description

Michael Hall · Michael Hall · commit 79736dea0594 · 2021-11-04T14:59:42.000+10:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,5 +1,6 @@
 [package]
 name = "psdm"
+description = "Compute a pairwise SNP distance matrix from one or two alignment(s)"
 version = "0.1.0"
 edition = "2018"
 authors = ["Michael Hall <michael@mbh.sh>"]
