Correct spelling (#36783)

I was testing typos-cli and fixed some misspelled wording here.
All changes are internal — no public API fields, database columns,
locale keys, or migration names are affected.

templates/repo/diff/blob_excerpt.tmpl

@@ -15,7 +15,7 @@
 			<td class="lines-escape lines-escape-old">{{if and $line.LeftIdx $inlineDiff.EscapeStatus.Escaped}}<button class="toggle-escape-button btn interact-bg" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff}}"></button>{{end}}</td>
 			<td class="lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="tw-font-mono" data-type-marker=""></span>{{end}}</td>
 			<td class="lines-code lines-code-old">
-				{{/* ATTENTION: BLOB-EXCERPT-COMMENT-RIGHT: here it intentially use "right" side to comment, because the backend code depends on the assumption that the comment only happens on right side*/}}
+				{{/* ATTENTION: BLOB-EXCERPT-COMMENT-RIGHT: here it intentionally use "right" side to comment, because the backend code depends on the assumption that the comment only happens on right side*/}}
 				{{- if and $canCreateComment $line.RightIdx -}}
 					<button type="button" aria-label="{{ctx.Locale.Tr "repo.diff.comment.add_line_comment"}}" class="ui primary button add-code-comment add-code-comment-right{{if (not $line.CanComment)}} tw-invisible{{end}}" data-side="right" data-idx="{{$line.RightIdx}}">
 						{{- svg "octicon-plus" -}}