update docs (#1084)

Author: lvyufeng

docs/assets/favicon.ico

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+# PEFT (Prompt Engineering with Fine-Tuning)
+
+MindNLP's PEFT (Prompt Engineering with Fine-Tuning) is a methodology for fine-tuning natural language models using prompts. It allows users to tailor their models for specific tasks or domains by providing customized prompts, enabling better performance on downstream tasks.
+
+## Introduction
+
+PEFT leverages the power of prompts, which are short natural language descriptions of the task, to guide the model's understanding and behavior. By fine-tuning with prompts, users can steer the model's attention and reasoning towards relevant information, improving its performance on targeted tasks.
+
+## Supported PEFT Algorithms
+
+| Algorithm        | Description                                                  |
+|------------------|--------------------------------------------------------------|
+| [AdaLoRA](./tuners/adalora.md)          | Adaptable Prompting with Learned Rationales (AdaLoRA)        |
+| [Adaption_Prompt](./tuners/adaption_prompt.md)  | Adaptation Prompting                                          |
+| [IA3](./tuners/ia3.md)              | Iterative Alignments for Adaptable Alignment and Prompting (IA3) |
+| [LoKr](./tuners/lokr.md)             | Large-scale k-shot Knowledge Representation (LoKr)           |
+| [LoRA](./tuners/lora.md)             | Learnable Redirection of Attention (LoRA)                    |
+| [Prompt Tuning](./tuners/prompt_tuning.md)     | Prompt Tuning fine-tunes models by optimizing the prompts used during fine-tuning.              |
+
+Each algorithm offers unique approaches to prompt engineering and fine-tuning, allowing users to adapt models to diverse tasks and domains effectively.
+

docs/en/api/peft/MAIN_CLASSES/PEFT_TYPE.md

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 :::mindnlp.peft.tuners.adalora.config.AdaLoraConfig
-::: mindnlp.peft.tuners.adalora.model.AdaLoraModel
+:::mindnlp.peft.tuners.adalora.model.AdaLoraModel

docs/en/api/peft/MAIN_CLASSES/Tuner.md

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 :::mindnlp.peft.tuners.adaption_prompt.config.AdaptionPromptConfig
-::: mindnlp.peft.tuners.adaption_prompt.model.AdaptionPromptModel
+:::mindnlp.peft.tuners.adaption_prompt.model.AdaptionPromptModel

docs/en/api/peft/MAIN_CLASSES/config.md renamed to docs/en/api/peft/config.md

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 :::mindnlp.peft.tuners.ia3.config
-::: mindnlp.peft.tuners.ia3.model
+:::mindnlp.peft.tuners.ia3.model