After replacing endnote move immediately to the next

We know there’s only one endnote we care about, so we can move directly to the next after amending, rather than keeping on scanning the file.

On Pepys endnotes on my machine this shaves a second off the overall time.

reorder-endnotes

@@ -54,8 +54,8 @@ def main():
 				note_range = range(target_endnote_number, endnote_count + 1, 1)
 
 			for endnote_number in note_range:
-				xhtml = xhtml.replace("id=\"note-{}\"".format(endnote_number), "id=\"note-{}\"".format(endnote_number + step))
-				xhtml = xhtml.replace("#noteref-{}\"".format(endnote_number), "#noteref-{}\"".format(endnote_number + step))
+				xhtml = xhtml.replace("id=\"note-{}\"".format(endnote_number), "id=\"note-{}\"".format(endnote_number + step), 1)
+				xhtml = xhtml.replace("#noteref-{}\"".format(endnote_number), "#noteref-{}\"".format(endnote_number + step), 1)
 
 			file.seek(0)
 			file.write(xhtml)
@@ -77,8 +77,8 @@ def main():
 
 				for endnote_number in note_range:
 					processed_xhtml = regex.sub(r"(<a[^>]*?>){}</a>".format(endnote_number), r"\g<1>{}</a>".format(endnote_number + step), processed_xhtml, flags=regex.DOTALL)
-					processed_xhtml = processed_xhtml.replace("id=\"noteref-{}\"".format(endnote_number), "id=\"noteref-{}\"".format(endnote_number + step))
-					processed_xhtml = processed_xhtml.replace("#note-{}\"".format(endnote_number), "#note-{}\"".format(endnote_number + step))
+					processed_xhtml = processed_xhtml.replace("id=\"noteref-{}\"".format(endnote_number), "id=\"noteref-{}\"".format(endnote_number + step), 1)
+					processed_xhtml = processed_xhtml.replace("#note-{}\"".format(endnote_number), "#note-{}\"".format(endnote_number + step), 1)
 
 				if processed_xhtml != xhtml:
 					file.seek(0)