Udpate openvino documentation (#741)

* udpate openvino documentation

* rename section

* add forward

* style

Author: echarlaix

docs/source/inference.mdx

@@ -28,8 +28,12 @@ As shown in the table below, each task is associated with a class enabling to au
 | `image-classification`               | `OVModelForImageClassification`      |
 | `feature-extraction`                 | `OVModelForFeatureExtraction`        |
 | `fill-mask`                          | `OVModelForMaskedLM`                 |
+| `image-classification`               | `OVModelForImageClassification`      |
+| `audio-classification`               | `OVModelForAudioClassification`      |
 | `text-generation`                    | `OVModelForCausalLM`                 |
 | `text2text-generation`               | `OVModelForSeq2SeqLM`                |
+| `automatic-speech-recognition`       | `OVModelForSpeechSeq2Seq`            |
+| `image-to-text`                      | `OVModelForVision2Seq`               |
 
 
 ### Export

docs/source/reference_ov.mdx

@@ -14,56 +14,113 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 
-# Reference
+# Models
 
-## OVModelForFeatureExtraction
+## Natural Language Processing
 
-[[autodoc]] openvino.modeling.OVModelForFeatureExtraction
+The following classes are available for the following natural language processing tasks.
+
+### OVModelForCausalLM
+
+[[autodoc]] openvino.modeling_decoder.OVModelForCausalLM
+    - forward
+    - generate
 
-## OVModelForMaskedLM
+### OVModelForMaskedLM
 
 [[autodoc]] openvino.modeling.OVModelForMaskedLM
+    - forward
+
+### OVModelForSeq2SeqLM
+
+[[autodoc]] openvino.modeling_seq2seq.OVModelForSeq2SeqLM
+    - forward
 
-## OVModelForQuestionAnswering
+### OVModelForQuestionAnswering
 
 [[autodoc]] openvino.modeling.OVModelForQuestionAnswering
+    - forward
 
-## OVModelForSequenceClassification
+### OVModelForSequenceClassification
 
 [[autodoc]] openvino.modeling.OVModelForSequenceClassification
+    - forward
 
-## OVModelForTokenClassification
+### OVModelForTokenClassification
 
 [[autodoc]] openvino.modeling.OVModelForTokenClassification
+    - forward
 
-## OVModelForAudioClassification
+
+## Audio
+
+The following classes are available for the following audio tasks.
+
+### OVModelForAudioClassification
 
 [[autodoc]] openvino.modeling.OVModelForAudioClassification
+    - forward
 
-## OVModelForAudioFrameClassification
+### OVModelForAudioFrameClassification
 
 [[autodoc]] openvino.modeling.OVModelForAudioFrameClassification
+    - forward
 
-## OVModelForCTC
+### OVModelForCTC
 
 [[autodoc]] openvino.modeling.OVModelForCTC
+    - forward
 
-## OVModelForAudioXVector
+### OVModelForAudioXVector
 
 [[autodoc]] openvino.modeling.OVModelForAudioXVector
+    - forward
+
+### OVModelForSpeechSeq2Seq
+
+[[autodoc]] openvino.modeling_seq2seq.OVModelForSpeechSeq2Seq
+    - forward
+
+
+## Computer Vision
 
-## OVModelForImageClassification
+The following classes are available for the following computer vision tasks.
+
+### OVModelForImageClassification
 
 [[autodoc]] openvino.modeling.OVModelForImageClassification
+    - forward
 
-## OVModelForCausalLM
 
-[[autodoc]] openvino.modeling_decoder.OVModelForCausalLM
+## Multimodal
 
-## OVModelForSeq2SeqLM
+The following classes are available for the following multimodal tasks.
 
-[[autodoc]] openvino.modeling_seq2seq.OVModelForSeq2SeqLM
+### OVModelForVision2Seq
+
+[[autodoc]] openvino.modeling_seq2seq.OVModelForVision2Seq
+    - forward
+
+### OVModelForPix2Struct
+
+[[autodoc]] openvino.modeling_seq2seq.OVModelForPix2Struct
+    - forward
+
+##  Custom Tasks
+
+### OVModelForCustomTasks
+
+[[autodoc]] openvino.modeling.OVModelForCustomTasks
+    - forward
+
+### OVModelForFeatureExtraction
+
+[[autodoc]] openvino.modeling.OVModelForFeatureExtraction
+    - forward
+
+
+# Quantization
 
-## OVQuantizer
+### OVQuantizer
 
 [[autodoc]] openvino.quantization.OVQuantizer