added package level doc strings. (#441)

* added package level doc strings.

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.31.1] - 2024-01-31
+
+### Added
+- Fixed package level doc strings for search and bwt packages.
+
+[0.31.0]: https://github.com/TimothyStiles/poly/releases/tag/v0.31.0
+
 ## [0.31.0] - 2024-01-31
 
 ### Added

search/bwt/bwt.go

@@ -1,3 +1,13 @@
+/*
+Package bwt is a package for performing burrows-wheeler transforms on sequences.
+
+The BWT is a lossless compression algorithm that can be used to reduce the memory
+footprint of a sequence while still maintaining the ability to search, align, and
+extract the original sequence. This is useful for sequences so large that it would
+be beneficial to reduce its memory footprint while also maintaining a way to analyze
+and work with the sequence. BWT is used in both bioinformatics(burrows wheeler alignment)
+and data compression (bzip2).
+*/
 package bwt
 
 import (

search/search.go

@@ -0,0 +1,8 @@
+/*
+Package search provides utilities for searching sequence data.
+*/
+package search
+
+/*
+This package is supposed to be empty and only exists to provide a doc string.
+*/