docs: fix the link of symlink (#488)

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## Summary by CodeRabbit

- **Documentation**
- Updated documentation to clarify the handling of local directory
accessibility in the `Local` job execution context, ensuring users
understand to disable symlink options when local directories are not
accessible.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Signed-off-by: Jinzhe Zeng <[email protected]>

doc/context.md

@@ -17,7 +17,7 @@ Since [`bash -l`](https://www.gnu.org/software/bash/manual/bash.html#Invoking-Ba
 
 `Local` runs jobs in the local server, but in a different directory.
 Files will be symlinked to the remote directory before jobs start and copied back after jobs finish.
-If the local directory is not accessible with the [batch system](./batch.md), turn off {dargs:argument}`symlink <machine[SSHContext]/remote_profile/symlink>`, and then files on the local directory will be copied to the remote directory.
+If the local directory is not accessible with the [batch system](./batch.md), turn off {dargs:argument}`symlink <machine[LocalContext]/remote_profile/symlink>`, and then files on the local directory will be copied to the remote directory.
 
 Since [`bash -l`](https://www.gnu.org/software/bash/manual/bash.html#Invoking-Bash) is used in the shebang line of the submission scripts, the [login shell startup files](https://www.gnu.org/software/bash/manual/bash.html#Invoking-Bash) will be executed, potentially overriding the current environment variables. Therefore, it's advisable to explicitly set the environment variables using {dargs:argument}`envs <resources/envs>` or {dargs:argument}`source_list <resources/source_list>`.