[gtk/fix-doc-typo] Fix a documentation typo

[Matthias Clasen <matthiasc src gnome org>]

commit 88fa226223644c422ea175388d4eac809d1d14cb
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Mar 4 22:18:06 2022 -0700

    Fix a documentation typo
    
    It is XDG_DATA_HOME.
    
    Fixes: #4747

 docs/reference/gtk/running.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/running.md b/docs/reference/gtk/running.md
index 722c320256..446f01b227 100644
--- a/docs/reference/gtk/running.md
+++ b/docs/reference/gtk/running.md
@@ -372,7 +372,7 @@ library you are using:
 The `test` accessibility backend is recommended for test suites and remote
 continuous integration pipelines.
 
-### `XDG_DTA_HOME`, `XDG_DATA_DIRS`
+### `XDG_DATA_HOME`, `XDG_DATA_DIRS`
 
 GTK uses these environment variables to locate icon themes
 and MIME information. For more information, see the