Update README.md

Adding resnet18 to model selection

README.md

@@ -49,6 +49,7 @@ The multi-hot encoded output relates to the following classes sorted in alphabet
 | ConvNext v2 Base          | `convnextv2_base`                                                         |          [ConvNext v2 Base S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/convnextv2_base-s1-v0.2.0)           |          [ConvNext v2 Base S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/convnextv2_base-s2-v0.2.0)           |          [ConvNext v2 Base S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/convnextv2_base-all-v0.2.0)           |
 | MLP-Mixer Base            | `mixer_b16_224`                                                           |            [MLP-Mixer Base S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mixer_b16_224-s1-v0.2.0)             |            [MLP-Mixer Base S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mixer_b16_224-s2-v0.2.0)             |            [MLP-Mixer Base S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mixer_b16_224-all-v0.2.0)             |
 | MobileViT-S               | `mobilevit_s`                                                             |               [MobileViT-S S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mobilevit_s-s1-v0.2.0)               |               [MobileViT-S S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mobilevit_s-s2-v0.2.0)               |               [MobileViT-S S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/mobilevit_s-all-v0.2.0)               |
+| ResNet-18                 | `resnet18`                                                                |                 [ResNet-18 S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet18-s1-v0.2.0)                  |                 [ResNet-18 S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet18-s2-v0.2.0)                  |                 [ResNet-18 S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet18-all-v0.2.0)                  |
 | ResNet-50                 | `resnet50`                                                                |                 [ResNet-50 S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet50-s1-v0.2.0)                  |                 [ResNet-50 S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet50-s2-v0.2.0)                  |                 [ResNet-50 S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet50-all-v0.2.0)                  |
 | ResNet-101                | `resnet101`                                                               |                [ResNet-101 S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet101-s1-v0.2.0)                 |                [ResNet-101 S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet101-s2-v0.2.0)                 |                [ResNet-101 S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/resnet101-all-v0.2.0)                 |
 | ViT Base                  | `vit_base_patch8_224`                                                     |            [ViT Base S1](https://huggingface.co/BIFOLD-BigEarthNetv2-0/vit_base_patch8_224-s1-v0.2.0)             |            [ViT Base S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/vit_base_patch8_224-s2-v0.2.0)             |            [ViT Base S1+S2](https://huggingface.co/BIFOLD-BigEarthNetv2-0/vit_base_patch8_224-all-v0.2.0)             |