minor caption changes

app.py

@@ -11,6 +11,9 @@ from pytorch_ie.documents import TextDocumentWithLabeledSpansBinaryRelationsAndL
 from pytorch_ie.models import *  # noqa: F403
 from pytorch_ie.taskmodules import *  # noqa: F403
 
+RENDER_WITH_DISPLACY = "displaCy + highlighted arguments"
+RENDER_WITH_PRETTY_TABLE = "Pretty Table"
+
 
 def render_pretty_table(
     document: TextDocumentWithLabeledSpansBinaryRelationsAndLabeledPartitions, **render_kwargs
@@ -130,18 +133,18 @@ def predict(text: str) -> Tuple[dict, str]:
     return document_dict, json.dumps(document_dict)
 
 
-def render(document_txt: str, render_as: str, render_kwargs_json: str) -> str:
+def render(document_txt: str, render_with: str, render_kwargs_json: str) -> str:
     document_dict = json.loads(document_txt)
     document = TextDocumentWithLabeledSpansBinaryRelationsAndLabeledPartitions.fromdict(
         document_dict
     )
     render_kwargs = json.loads(render_kwargs_json)
-    if render_as == "Pretty Table":
+    if render_with == RENDER_WITH_PRETTY_TABLE:
         html = render_pretty_table(document, **render_kwargs)
-    elif render_as == "spaCy":
+    elif render_with == RENDER_WITH_DISPLACY:
         html = render_spacy(document, **render_kwargs)
     else:
-        raise ValueError(f"Unknown render_as value: {render_as}")
+        raise ValueError(f"Unknown render_with value: {render_with}")
 
     return html
 
@@ -216,9 +219,9 @@ if __name__ == "__main__":
 
                 with gr.Accordion("Render Options", open=False):
                     render_as = gr.Dropdown(
-                        label="Render as",
-                        choices=["Pretty Table", "spaCy"],
-                        value="spaCy",
+                        label="Render with",
+                        choices=[RENDER_WITH_PRETTY_TABLE, RENDER_WITH_DISPLACY],
+                        value=RENDER_WITH_DISPLACY,
                     )
                     render_kwargs = gr.Textbox(
                         label="Render Arguments",