Update 2022-6-12-geospatial-deep-learning-with-torchgeo.md

Update to code block

Author: TerryCE

_posts/2022-6-12-geospatial-deep-learning-with-torchgeo.md

@@ -108,9 +108,8 @@ dataloader = DataLoader(
 
 This data loader can now be used in your normal training/evaluation pipeline.
 
-for batch in dataloader:
-
 ```c++
+for batch in dataloader:
 image = batch["image"]
     mask = batch["mask"]