[DOC] Add changelog entry for seqan3::alignment_from_cigar and seqan3…

…::cigar_from_alignment.

CHANGELOG.md

@@ -24,6 +24,22 @@ The following API changes should be documented as such:
 If possible, provide tooling that performs the changes, e.g. a shell-script.
 -->
 
+# 3.3.0
+
+## New features
+
+#### Alignment
+
+* The function `seqan3::alignment_from_cigar` creates an alignment (tuple of 2 aligned sequences) from a
+  CIGAR vector (`std::vector<seqan3::cigar>`) ([\#3057](https://github.com/seqan/seqan3/pull/3057)) and a
+  CIGAR string (`std::string`) ([\#3077](https://github.com/seqan/seqan3/pull/3077)).
+* The function `seqan3::cigar_from_alignment` creates CIGAR vector (`std::vector<seqan3::cigar>`) from an alignment
+  (tuple of 2 aligned sequences) ([\#3057](https://github.com/seqan/seqan3/pull/3057)).
+
+## Notable Bug-fixes
+
+## API changes
+
 # 3.2.0
 
 ## New features