fix typo

Author: shenwei356

CHANGELOG.md

@@ -1,7 +1,7 @@
 - [SeqKit v2.12.0](https://github.com/shenwei356/seqkit/releases/tag/v2.12.0) - 2025-12-04
 [![Github Releases (by Release)](https://img.shields.io/github/downloads/shenwei356/seqkit/v2.12.0/total.svg)](https://github.com/shenwei356/seqkit/releases/tag/v2.12.0)
     - `seqkit grep`:
-        - `-p/--pattern` accepts empty charactor (`""`) now. So it's able to **search records with empty IDs or sequences**. [#558](https://github.com/shenwei356/seqkit/issues/558)
+        - `-p/--pattern` accepts empty character (`""`) now. So it's able to **search records with empty IDs or sequences**. [#558](https://github.com/shenwei356/seqkit/issues/558)
     - `seqkit split2`:
         - fix a bug introduced in v2.11.0: `--by-part-prefix` options has no effect. [#554](https://github.com/shenwei356/seqkit/issues/554)
     - `seqkit replace`:

doc/docs/download.md

@@ -13,14 +13,14 @@ Wei Shen\*, Botond Sipos, and Liuyang Zhao. 2024. SeqKit2: A Swiss Army Knife fo
 - [SeqKit v2.12.0](https://github.com/shenwei356/seqkit/releases/tag/v2.12.0) - 2025-12-04
 [![Github Releases (by Release)](https://img.shields.io/github/downloads/shenwei356/seqkit/v2.12.0/total.svg)](https://github.com/shenwei356/seqkit/releases/tag/v2.12.0)
     - `seqkit grep`:
-        - `-p/--pattern` accepts empty charactor (`""`) now. So it's able to **search records with empty IDs or sequences**. [#558](https://github.com/shenwei356/seqkit/issues/558)
+        - `-p/--pattern` accepts empty character (`""`) now. So it's able to **search records with empty IDs or sequences**. [#558](https://github.com/shenwei356/seqkit/issues/558)
     - `seqkit split2`:
         - fix a bug introduced in v2.11.0: `--by-part-prefix` options has no effect. [#554](https://github.com/shenwei356/seqkit/issues/554)
     - `seqkit replace`:
         - `{uuid}`: use the time-sortable UUIDv7 to replace v4.
     - `seqkit stats/fx2tab`:
         - add information about how the average quality is computed. [#448](https://github.com/shenwei356/seqkit/issues/448)
-        
+
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