Added info in example-config how to install library for lottie

example-config.yaml

@@ -168,6 +168,12 @@ bridge:
     # image - converts to png (fastest and preferred),
     # gif - converts to gif animation (requires gifski binary and takes a lot of time),
     # video - video in mp4 container (requires gifski and ffmpeg binary and takes a lot of time, but less than gif)
+    # To install library:
+    # source venv/bin/activate
+    # pip install nodeenv
+    # nodeenv -p
+    # source venv/bin/activate
+    # npm install -g puppeteer-lottie-cli
     animated_sticker_target_type: image
 
     # Whether to bridge Telegram bot messages as m.notices or m.texts.