[GSoC][PATCH] doc: fix doubled words in gitdiffcore documentation

[Noman <necrospre@gmail.com>]

Hello Git community,
I am Naorem Ngathoiba Singh, a GSoC 2026 applicant interested in the
'Improve the new git repo command' project. As my microproject, I have
identified and fixed some doubled words in the documentation. Below is
my patch.

From 3d7b15e3bb99878a7121d8372c6298b9be930346 Mon Sep 17 00:00:00 2001
From: Naorem Singh <necrospre@gmail.com>
Date: Sat, 28 Mar 2026 10:53:36 +0530
Subject: [PATCH] doc: fix doubled words in gitdiffcore documentation

Signed-off-by: Naorem Singh <necrospre@gmail.com>
---
 Documentation/gitdiffcore.adoc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/gitdiffcore.adoc b/Documentation/gitdiffcore.adoc
index 642c51227b..2b3fd5a259 100644
--- a/Documentation/gitdiffcore.adoc
+++ b/Documentation/gitdiffcore.adoc
@@ -133,7 +133,7 @@ input contained these filepairs:
 :000000 100644 0000000... 0123456... A file0
 ------------------------------------------------

-and the contents of the deleted file fileX is similar enough to
+and the contents of the deleted file X is similar enough to
 the contents of the created file file0, then rename detection
 merges these filepairs and creates:

@@ -145,7 +145,7 @@ When the "-C" option is used, the original
contents of modified files,
 and deleted files (and also unmodified files, if the
 "--find-copies-harder" option is used) are considered as candidates
 of the source files in rename/copy operation.  If the input were like
-these filepairs, that talk about a modified file fileY and a newly
+these filepairs, that talk about a modified file Y and a newly
 created file file0:

 ------------------------------------------------
--
2.45.1.windows.1