add how_to_use

app.py

@@ -79,7 +79,7 @@ In addition to text tasks, 🙏🏻PLeIAs/📸📈✍🏻Florence-PDF also incor
 
 joinus = """🌟TeamTonic🌟 is always making cool demos! Join our active builder's 🛠️community 👻 [![Join us on Discord](https://img.shields.io/discord/1109943800132010065?label=Discord&logo=discord&style=flat-square)](https://discord.gg/qdfnvSPcqP) On 🤗Huggingface:[MultiTransformer](https://huggingface.co/MultiTransformer) On 🌐Github: [Tonic-AI](https://github.com/tonic-ai) & contribute to🌟 [Build Tonic](https://git.tonic-ai.com/contribute)🤗Big thanks to Yuvi Sharma and all the folks at huggingface for the community grant 🤗
 """
-howto = """The advanced settings allow you to fine-tune the text generation process. Here's what each setting does and how to use it:
+how_to_use = """The advanced settings allow you to fine-tune the text generation process. Here's what each setting does and how to use it:
 
 ### Top-k (Default: 50)
 Top-k sampling limits the next token selection to the k most likely tokens.