Update TROUBLESHOOTING.md

TROUBLESHOOTING.md

@@ -16,7 +16,7 @@ See [Checkmk extension packages (MKPs)](https://docs.checkmk.com/latest/en/mkps.
 
 <details><summary>HW/SW-Inventory issues</summary>
 
-For issues with the HW/SW inventory, such as no or incomplete CDP/LLDP/IP address inventory, follow the contribution guidelines of the respective plugins
+For issues with the HW/SW inventory, such as no or incomplete CDP/LLDP/IPv4 address inventory, follow the contribution guidelines of the respective plugins
 
 - [CDP cache](https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/inventory/inv_cdp_cache/-/blob/master/CONTRIBUTING.md)
 - [LLDP cache](https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/inventory/inv_lldp_cache/-/blob/master/CONTRIBUTING.md)
@@ -120,18 +120,16 @@ The best way to solve such issues use the same name on the device and in Checkmk
 
 1. NVDCT can convert all neighbor names to upper or lower case
 
-    NVDCT has the options '--lowercase' and '--uppercase' for this purpose.
+    NVDCT has the options '--case' LOWER | UPPER for this purpose.
 
         ```
         [SETTINGS]
-        lowercase = false
-        uppercase = true
+        case = "LOWER" | "UPPER"
         ```
-    Note: set only `lowercase` or `lowercase` to `true`. If both options set to `true`, NVDCT will prefer `uppercase`
-
+    
 3. NVDCT can add a prefix to all neighbor names
 
-    Use the pption '-p'/'--prefix' to add an prefix to all neighbor names. The prefix will be set after the upper-/lowercase option.
+    Use the pption '-p'/'--prefix' to add an prefix to all neighbor names. The prefix will be set after the --case option is applied.
 
     ```
     [SETTINGS]
@@ -140,7 +138,7 @@ The best way to solve such issues use the same name on the device and in Checkmk
 
 4. NVDCT can map neighbor names to Checkmk names via the [HOST_MAP] section.
 
-    If all this options dont solve your nameig issues, there is as last option the [HOST_MAP] serction in the settings file. Here you can map neighbor names to Checkmk names.
+    If all this options dont solve your nameig issues, there is as last option the [HOST_MAP] section in the settings file. Here you can map neighbor names to Checkmk names.
 
     ```
     [HOST_MAP]