Fix broken image path in SharePoint Online KB article

Updates the image reference in
  sharepoint-online-activity-scan-warning-unknown-item-type.md to correctly point to the image location after the file was moved from
  docs/kb/activitymonitor to docs/kb/accessanalyzer in PR #81.

Changes the relative path from ../0-images/ to ../../activitymonitor/0-images/ to
  maintain compatibility with version-specific docs that still reference this image.

Author: Hilary Ramirez

docs/kb/accessanalyzer/sharepoint-online-integration/sharepoint-online-activity-scan-warning-unknown-item-type.md

@@ -50,5 +50,5 @@ To address this issue, you can do one of the following:
 - Disable the collection of **Other event types** in **Netwrix Activity Monitor**:
 
   1. Open **Netwrix Activity Monitor** and navigate to the SharePoint Online file output in the **Monitored Hosts** tab.
-  2. On the **Other** tab, uncheck the **Other events** option:  
-     ![SharePoint Online Other events option screenshot](../0-images/ka0Qk000000CnwD_0EMQk00000BF8bi.png)
+  2. On the **Other** tab, uncheck the **Other events** option:
+     ![SharePoint Online Other events option screenshot](../../activitymonitor/0-images/ka0Qk000000CnwD_0EMQk00000BF8bi.png)