documentation: adds code block label

documentation/en/install-lotus-macos.md

@@ -49,14 +49,14 @@ Use the command `brew install` to install the following packages:
 brew install go bzr jq pkg-config rustup
 ```
 
-## Clone
+Clone
 
 ```sh
 git clone https://github.com/filecoin-project/lotus.git
 cd lotus/
 ```
 
-## Build
+Build
 
 ```sh
 make clean && make all

documentation/en/local-dev-net.md

@@ -3,32 +3,32 @@
 Build the lotus binaries in debug mode, This enables the use of 1024 byte
 sectors.
 
-```
+```sh
 make debug
 ```
 
 Pre-seal some sectors:
 
-```
+```sh
 ./lotus-seed pre-seal --sector-size 1024 --num-sectors 2
 ```
 
 Create the genesis block and start up the first node:
 
-```
+```sh
 ./lotus daemon --lotus-make-random-genesis=dev.gen --genesis-presealed-sectors
 =~/.genesis-sectors/pre-seal-t0101.json --bootstrap=false
 ```
 
 Set up the genesis miner:
 
-```
+```sh
 ./lotus-storage-miner init --genesis-miner --actor=t0101 --sector-size=1024 --pre-sealed-sectors=~/.genesis-sectors --nosync
 ```
 
 Now, finally, start up the miner:
 
-```
+```sh
 ./lotus-storage-miner run --nosync
 ```
 

documentation/en/mining-troubleshooting.md

@@ -33,7 +33,7 @@ included in the chain, and you will not receive any rewards.
 
 ## Running out of storage
 
-```
+```sh
 lotus-storage-miner pledge-sector
 # No space left on device (os error 28)
 ```
@@ -54,7 +54,7 @@ benchmark.
 First, to watch GPU utilization run `nvtop` in one terminal, then in a separate
 terminal, run:
 
-```
+```sh
 lotus-bench --sector-size=1024
 ```
 

documentation/en/mining-worker.md

@@ -26,7 +26,7 @@ automatically pick up the correct authentication tokens from the
 To check that the seal worker is properly connected to your storage miner, run
 `lotus-storage-miner info` and check that the remote worker count has increased.
 
-```
+```sh
 why@computer ~/lotus> lotus-storage-miner info
 Miner: t0103
 Sector Size: 16.0 MiB
@@ -95,7 +95,7 @@ Once this is set, you should be able to just run `lotus-seal-worker run`.
 To check that the seal worker is properly connected to your storage miner, run
 `lotus-storage-miner info` and check that the remote worker count has increased.
 
-```
+```sh
 why@computer ~/lotus> lotus-storage-miner info
 Miner: t05749
 Sector Size: 1 GiB