Update resource-hook.md

Author: gwangmu

docs/software/container-engine/resource-hook.md

@@ -33,25 +33,25 @@ This can be done in multiple ways in TOML: for example, both of the following us
 
      * Attributes can be added to a table only in one place in the TOML file. In other words, each table must be defined in a single square bracket section. For example, Case 3 in the example below is invalid because the `ssh` table was doubly defined both in the `[annotations]` and in the `[annotations.com.hooks.ssh]` sections. See the [TOML format](https://toml.io/en/) spec for more details.
 
-    ```bash title="Valid"
-    [annotations.com.hooks.ssh]
-    authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
-    enabled = "true"
-    ```
-
-    ```bash title="Valid"
-    [annotations]
-    com.hooks.ssh.authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
-    com.hooks.ssh.enabled = "true"
-    ```
-
-    ```{.text .error}
-    [annotations]
-    com.hooks.ssh.authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
-
-    [annotations.com.hooks.ssh]
-    enabled = "true"
-    ```
+        ```bash title=":white-checker-mark: Valid"
+        [annotations.com.hooks.ssh]
+        authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
+        enabled = "true"
+        ```
+
+        ```bash title=":white-checker-mark: Valid"
+        [annotations]
+        com.hooks.ssh.authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
+        com.hooks.ssh.enabled = "true"
+        ```
+
+        ```bash title=":x: Invalid"
+        [annotations]
+        com.hooks.ssh.authorize_ssh_key = "/capstor/scratch/cscs/<username>/tests/edf/authorized_keys"
+
+        [annotations.com.hooks.ssh]
+        enabled = "true"
+        ```
 
 ## Accessing native resources