diff --git a/doc/FILE_RENAME.md b/doc/FILE_RENAME.md
index 6005d97..7c9a5c8 100644
--- a/doc/FILE_RENAME.md
+++ b/doc/FILE_RENAME.md
@@ -13,6 +13,12 @@ By default, it will replace "a man", "a woman", and "a person" with your supplie
 -> 
 "john doe standing in a park with birds on his shoulders.jpg"*
 
+## Append tags only
+
+    python scripts/filename_replace.py --img_dir "x:\myfiles" --append_only " by claude monet"
+
+This will simply append " by claude monet" without replacing anything, useful to add tags or artstyle keywords.
+
 ## Chaining with auto caption
 
 You can chain together the auto_caption.py and file_rename.py to help deal with multiple people in photos in a simple shell script (bash or windows .bat) with a bit of thinking about what you replace and using --find to specify the pronoun to replace first more specifically than all three default pronouns. 
@@ -27,4 +33,4 @@ You can chain together the auto_caption.py and file_rename.py to help deal with
 
 See clip_rename.bat in the root folder, modify it to your needs.
 
-Renaming is nearly instant as it is just renaming the files and not using and AI models or calculations, just a dumb find and replace on the filename. 
\ No newline at end of file
+Renaming is nearly instant as it is just renaming the files and not using and AI models or calculations, just a dumb find and replace on the filename.