Update perf_train_gpu_one.mdx (#19676)

docs/source/en/perf_train_gpu_one.mdx

@@ -25,7 +25,7 @@ In this section we have a look at a few tricks to reduce the memory footprint an
 | DataLoader | Yes | No |
 | DeepSpeed Zero | No | Yes |
 
-A bracket means that it might not be strictly the case but is usually either not a main concern or negligable. Before we start make sure you have installed the following libraries:
+A bracket means that it might not be strictly the case but is usually either not a main concern or negligible. Before we start make sure you have installed the following libraries:
 
 ```bash
 pip install transformers datasets accelerate nvidia-ml-py3