docs: Update validator activation steps and images for clarity

Author: nhussein11

images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-01.webp

@@ -105,19 +105,25 @@ To confirm that your validator is live and synchronized with the Polkadot networ
 
 Follow these steps to use Polkadot.js Apps to activate your validator:
 
-1. In Polkadot.js Apps, navigate to **Network** > **Staking**, open the **Accounts** tab and click on **+ Validator**. Set a bond amount in the **value bonded** field and then click **Set session keys**. Paste the output from `author_rotateKeys` (hex-encoded) to link your validator with its session keys. Then click **+ Validator** to continue.
+1. In Polkadot.js Apps, navigate to **Network** and select **Staking**:
 
-2. Set a reward commission percentage if desired. You can set a percentage of the rewards to pay to your validator and the remainder pays to your nominators. A 100% commission rate indicates the validator intends to keep all rewards and is seen as a signal the validator is not seeking nominators.
+    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-01.webp)
 
-3. Toggle the **allows new nominations** option if your validator is open to more nominations from DOT holders.
+2. Open the **Accounts** tab and click on **+ Validator**:
 
-4. Once everything is configured, select **Bond & Validate** to activate your validator status.
+    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-02.webp)
 
-    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-01.webp)
+3. Set a bond amount in the **value bonded** field and then click **next**.
 
-5. Edit the **commission** and the **blocked** option via `staking.validate` extrinsic. By default, the blocked option is set to FALSE (i.e., the validator accepts nominations).
+    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-03.webp)
 
-    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-02.webp)
+4.  **Set session keys**. Paste the output from `author_rotateKeys` (hex-encoded) to link your validator with its session keys. Then click **Bond & Validate** to continue.
+
+    ![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-04.webp)
+
+You can set the **commission** and the **blocked** option via `staking.validate` extrinsic. By default, the blocked option is set to FALSE (i.e., the validator accepts nominations).
+
+![](/images/infrastructure/running-a-validator/onboarding-and-offboarding/start-validating/start-validating-05.webp)
 
 ### Monitor Validation Status and Slots