Fixing error in pyarmnn generate_docs.py

Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
Change-Id: Ic352c48dfe04c6cc5a2b201bf71950866be6b2fe
diff --git a/python/pyarmnn/scripts/generate_docs.py b/python/pyarmnn/scripts/generate_docs.py
index 8de0831..9af0027 100755
--- a/python/pyarmnn/scripts/generate_docs.py
+++ b/python/pyarmnn/scripts/generate_docs.py
@@ -29,7 +29,7 @@
 
 
 def copy_doc_images():
-    __copy_file_to_dir(file_paths=['docs/pyarmnn.png'],
+    __copy_file_to_dir(file_paths=['../../docs/pyarmnn.png'],
                        target_dir_path='docs')