docs(jetsons.md): fix desc (#1090)

* docs(jetsons.md): fix desc

* docs(jetsons.md): update

docs/en/01-how-to-build/jetsons.md

@@ -175,16 +175,18 @@ It takes about 1 hour 40 minutes to install MMCV on a Jetson Nano. So, please be
 #### Install ONNX
 
 ```shell
+# Execute one of the following commands
 pip install onnx
+conda install -c conda-forge onnx
 ```
 
-#### Install h5py
+#### Install h5py and pycuda
 
-Model Converter employs HDF5 to save the calibration data for TensorRT INT8 quantization.
+Model Converter employs HDF5 to save the calibration data for TensorRT INT8 quantization and needs `pycuda` to copy device memory.
 
 ```shell
 sudo apt-get install -y pkg-config libhdf5-100 libhdf5-dev
-pip install versioned-hdf5
+pip install versioned-hdf5 pycuda
 ```
 
 ```{note}

docs/zh_cn/01-how-to-build/jetsons.md

@@ -158,16 +158,18 @@ conda activate mmdeploy
 - 安装 ONNX
 
   ```shell
-  pip install onnx
+  # 以下方式二选一
+  python3 -m pip install onnx
+  conda install -c conda-forge onnx
   ```
 
-- 安装 h5py
+- 安装 h5py 和 pycuda
 
-  Model Converter 使用 HDF5 存储 TensorRT INT8 量化的校准数据。
+  Model Converter 使用 HDF5 存储 TensorRT INT8 量化的校准数据；需要 pycuda 拷贝显存
 
   ```shell
   sudo apt-get install -y pkg-config libhdf5-100 libhdf5-dev
-  pip install versioned-hdf5
+  pip install versioned-hdf5 pycuda
   ```
 
 ### 安装 SDK 的依赖项