Update the documentation

Docs/check-file-system.md

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+# PowerShell Script: check-file-system.ps1
+```powershell
+check-file-system.ps1 [<drive>]
+```
+
+Checks the file system of a drive (needs admin rights)
+
+## Syntax & Parameters
+```powershell
+/home/markus/Repos/PowerShell/Scripts/check-file-system.ps1 [[-Drive] <String>] [<CommonParameters>]
+```
+
+```
+-Drive <String>
+    
+    Required?                    false
+    Position?                    1
+    Default value                
+    Accept pipeline input?       false
+    Accept wildcard characters?  false
+```
+
+```
+[<CommonParameters>]
+    This cmdlet supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
+    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
+```
+
+## Example
+```powershell
+PS>./check-file-system C
+```
+
+
+## Notes
+Author: Markus Fleschutz · License: CC0
+
+## Related Links
+https://github.com/fleschutz/PowerShell
+
+*Generated by convert-ps2md.ps1 using the comment-based help of check-file-system.ps1*