Fix task example link

task-guide.md

@@ -116,7 +116,7 @@ class TaskName(..., MultipleChoiceTask):
 
 This will require you to format your documents such that they contain `gold` and `choices` fields. They can also have other fields, but those will be ignored by `MultipleChoiceTask`. `choices` should be a list of possible continuations, and `gold` should be an integer specifying the index of the correct completion.
 
-See [this task](https://github.com/EleutherAI/lm-evaluation-harness/blob/105fa9741ff660f6a62c2eef0d2facfde36dda41/lm_eval/tasks/sat.py#L56) for an example. When used in combination with `HFTask`, it may be useful to override [`_convert_standard`](https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/common.py#L28), which will be applied to every document in the HF dataset. See this [task](https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/headqa.py) for an example of this.
+See [this task](https://github.com/EleutherAI/lm-evaluation-harness/blob/105fa9741ff660f6a62c2eef0d2facfde36dda41/lm_eval/tasks/sat.py#L56) for an example. When used in combination with `HFTask`, it may be useful to override [`_convert_standard`](https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/common.py#L28), which will be applied to every document in the HF dataset. See [this task](https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/headqa.py) for an example of this.
 
 You can now skip ahead to <a href="#Registering-Your-Task">registering your task</a>.