Update Dockerfile

Dockerfile

@@ -10,7 +10,7 @@ ENV PATH="/home/user/.local/bin:$PATH"
 WORKDIR /app
 
 COPY --chown=user ./requirements.txt requirements.txt
-COPY --chown=user ./template.html template.html
+COPY --chown=user ./template.txt template.txt
 COPY --chown=user ./main.py main.py
 COPY --chown=user ./start.sh start.sh