Merge pull request #2202 from jackoelv/patch-2

Update mining-troubleshooting.md

documentation/en/mining-troubleshooting.md

@@ -38,7 +38,7 @@ If you see this, that means your computer is too slow and your blocks are not in
 ## Error: No space left on device
 
 ```sh
-lotus-storage-miner pledge-sector
+lotus-storage-miner sectors pledge
 # No space left on device (os error 28)
 ```
 
@@ -51,7 +51,8 @@ If you suspect that your GPU is not being used, first make sure it is properly c
 First, to watch GPU utilization run `nvtop` in one terminal, then in a separate terminal, run:
 
 ```sh
-lotus-bench --sector-size=2KiB
+make bench
+./bench sealing --sector-size=2KiB
 ```
 
 This process uses a fair amount of GPU, and generally takes ~4 minutes to complete. If you do not see any activity in nvtop from lotus during the entire process, it is likely something is misconfigured with your GPU.