Fix broken link that running manually pointed out

docs/users/extend/config_yaml.md

@@ -26,7 +26,7 @@ the .ddev/config.yaml is the primary configuration for the project.
 | upload_dir | Relative path to upload directory used by `ddev import-files` | |
 | working_dir | explicitly specify the working directory used by `ddev exec` and `ddev ssh` | `working_dir: { web:  "/var/www", db: "/etc" }` would set the working directories for the web and db containers. |
 | omit_containers | Allows the project to not load specified containers | For example, `omit_containers: ["db", dba", "ddev-ssh-agent"]`. Currently only these containers are supported. Some containers can also be omitted globally in the ~/.ddev/global_config.yaml. Note that if you omit the "db" container, several standard features of ddev that access the database container will be unusuable. |
-| nfs_mount_enabled | Allows using NFS to mount the project into the container for performance reasons | See [nfsmount_enabled documentation](../../performance.md). This requires configuration on the host before it can be used. |
+| nfs_mount_enabled | Allows using NFS to mount the project into the container for performance reasons | See [nfsmount_enabled documentation](../performance.md). This requires configuration on the host before it can be used. |
 | host_https_port | Specify a specific and persistent https port for direct binding to the localhost interface | This is not commonly used, but a specific port can be provided here and the https URL will always remain the same. For example, if you put "59001", the project will always use "https://127.0.0.1:59001". for the localhost URL. (Note that the named URL is more commonly used and for most purposes is better.) If this is not set the port will change from `ddev start` to `ddev start` |
 | host_webserver_port | Specify a specific and persistent http port for direct binding to the localhost interface | This is not commonly used, but a specific port can be provided here and the https URL will always remain the same. For example, if you put "59000", the project will always use "http://127.0.0.1:59000". for the localhost URL. (Note that the named URL is more commonly used and for most purposes is better.) If this is not set the port will change from `ddev start` to `ddev start` |
 | host_db_port | localhost binding port for database server | If specified here, the database port will remain consistent. This is useful for configuration of host-side database browsers. Note, though, that `ddev sequelpro` and `ddev mysql` do all this automatically, as does the sample command `ddev mysqlworkbench`. |