From a8b7691ae42d01478754132e31e50bea4181f57c Mon Sep 17 00:00:00 2001
From: Hashim Khan <64767361+Hashim1999164@users.noreply.github.com>
Date: Thu, 13 Aug 2026 04:08:58 +0500
Subject: [PATCH] docs: fix alignment docstring typos

Correct 'substition' to 'substitution' and document that the alignment marker line uses a space for gaps.
---
 genalog/text/alignment.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/genalog/text/alignment.py b/genalog/text/alignment.py
index d37ca98..d3488be 100644
--- a/genalog/text/alignment.py
+++ b/genalog/text/alignment.py
@@ -203,8 +203,8 @@ def _format_alignment(align1, align2):
     Returns:
         a string with formatted alignment.
             '|' is for matching character
-            '.' is for substition
-            '-' indicates gap
+            '.' is for substitution
+            ' ' indicates gap
 
         For example:
             "