Update HM3D dataset details for v0.2 (#1927)

DATASETS.md

@@ -37,13 +37,13 @@ First, you will need to generate a matterport API Token:
 
 Now, you are ready to download. For example, to download the minival split, use:
 ```
-python -m habitat_sim.utils.datasets_download --username <api-token-id> --password <api-token-secret> --uids hm3d_minival
+python -m habitat_sim.utils.datasets_download --username <api-token-id> --password <api-token-secret> --uids hm3d_minival_v0.2
 ```
 
-By default, downloading the data for train/val/example scenes also pulls in the semantic annotations and configs for [HM3D-Semantics v0.1](https://aihabitat.org/datasets/hm3d-semantics/). To download only the semantic files for these splits, use the uid `hm3d_semantics`.
+By default, downloading the data for train/val/example scenes also pulls in the semantic annotations and configs for [HM3D-Semantics v0.2](https://aihabitat.org/datasets/hm3d-semantics/). To download only the semantic files for these splits, use the uid `hm3d_semantics`.
 
 
-By default the download script will only download what is needed for Habitat-Sim.  You can add `_full` to the uid to download the raw glbs and the obj+mtl's in addition to what is needed for use with Habitat-Sim.
+By default the download script will only download what is needed for Habitat-Sim. You can add `_full` to the uid to download the raw glbs in addition to what is needed for use with Habitat-Sim.
 
 ### Loading semantics for HM3D