update docs

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/device-dev/subsystems/subsys-dfx-hidumper.md

@@ -52,7 +52,7 @@ HiDumper is a tool provided by OpenHarmony for developers, testers, and IDE tool
 | -s | Exports all system ability information.| 
 | -s [SA0 SA1] | Exports ability information corresponding to SA0 and SA1.| 
 | -s [SA] -a ['-h'] | Exports the system ability information **SA** using the **-h** parameter.| 
-| -e | Exports crash logs generated by the Faultlogger module.| 
+| -e | Exports crash logs generated by the FaultLogger module.| 
 | --net | Exports network information.| 
 | --storage | Exports storage information.| 
 | -p | Exports the process list and all process information.| 
@@ -118,7 +118,7 @@ The procedure is as follows:
    hidumper -s 3008
    ```
 
-9. Run the **hidumper -e** command to obtain the crash information generated by the Faultlog module.
+9. Run the **hidumper -e** command to obtain the crash information generated by the FaultLogger module.
      
    ```
    hidumper -e

en/device-dev/subsystems/subsys-dfx-overview.md

@@ -11,7 +11,7 @@ The DFX subsystem provides the following functions:
 - HiSysEvent: implements system event logging. It is applicable to standard-system devices \(reference memory ≥ 128 MiB\).
 - HiChecker: implements defect scanning. It is applicable to standard-system devices \(reference memory ≥ 128 MiB\).
 - HiDumper: exports system information. It is applicable to standard-system devices \(reference memory ≥ 128 MiB\).
-- Faultlogger: implements crash detection. It is applicable to standard-system devices \(reference memory ≥ 128 MiB\).
+- FaultLogger: implements crash detection. It is applicable to standard-system devices \(reference memory ≥ 128 MiB\).
 
 ## Basic Concepts<a name="section5635178134811"></a>