diff --git a/README.md b/README.md
index 48b9d7809..e06b09274 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ would be great if you can use their referral code as your support to them. :-D
 
 The following script will help you set up a config file, dotenv file:
 
-```
+```sh
 bash <(curl -s https://raw.githubusercontent.com/c9s/bbgo/main/scripts/setup-grid.sh)
 ```
 
@@ -62,7 +62,7 @@ go get -u github.com/c9s/bbgo/cmd/bbgo
 
 Add your dotenv file:
 
-```
+```sh
 # if you have one
 BINANCE_API_KEY=
 BINANCE_API_SECRET=
@@ -82,20 +82,20 @@ Prepare your dotenv file `.env.local` and BBGO yaml config file `bbgo.yaml`.
 
 The minimal bbgo.yaml could be generated by:
 
-```shell
+```sh
 curl -o bbgo.yaml https://raw.githubusercontent.com/c9s/bbgo/main/config/minimal.yaml
 ```
 
 To sync your own trade data:
 
-```
+```sh
 bbgo sync --session max
 bbgo sync --session binance
 ```
 
 If you want to switch to other dotenv file, you can add an `--dotenv` option or `--config`:
 
-```
+```sh
 bbgo sync --dotenv .env.dev --config config/grid.yaml --session binance
 ```
 
@@ -145,14 +145,14 @@ Botfather will response your a bot token. *Keep bot token safe*
 
 Set `TELEGRAM_BOT_TOKEN` in the `.env.local` file, e.g.,
 
-```shell
+```sh
 TELEGRAM_BOT_TOKEN=347374838:ABFTjfiweajfiawoejfiaojfeijoaef
 ```
 
 For the telegram chat authentication (your bot needs to verify it's you), if you only need a fixed authentication token,
 you can set `TELEGRAM_AUTH_TOKEN` in the `.env.local` file, e.g.,
 
-```shell
+```sh
 TELEGRAM_BOT_AUTH_TOKEN=itsme55667788
 ```
 
@@ -168,7 +168,7 @@ Done! your notifications will be routed to the telegram chat.
 
 Put your slack bot token in the .env.local file:
 
-```shell
+```sh
 SLACK_TOKEN=xxoox
 ```
 
@@ -184,7 +184,7 @@ and asset calculation.
 
 To use MySQL database for data syncing, first you need to install your mysql server:
 
-```shell
+```sh
 # For Ubuntu Linux
 sudo apt-get install -y mysql-server
 ```
@@ -193,13 +193,13 @@ Or [run it in docker](https://hub.docker.com/_/mysql)
 
 Create your mysql database:
 
-```shell
+```sh
 mysql -uroot -e "CREATE DATABASE bbgo CHARSET utf8"
 ```
 
 Then put these environment variables in your `.env.local` file:
 
-```shell
+```sh
 DB_DRIVER=mysql
 DB_DSN=root@tcp(127.0.0.1:3306)/bbgo
 ```
@@ -208,7 +208,7 @@ DB_DSN=root@tcp(127.0.0.1:3306)/bbgo
 
 Just put these environment variables in your `.env.local` file:
 
-```shell
+```sh
 DB_DRIVER=sqlite3
 DB_DSN=bbgo.sqlite3
 ```
@@ -316,14 +316,14 @@ import (
 
 Create your go package, and initialize the repository with `go mod` and add bbgo as a dependency:
 
-```
+```sh
 go mod init
 go get github.com/c9s/bbgo@main
 ```
 
 Write your own strategy in the strategy file:
 
-```
+```sh
 vim strategy.go
 ```
 
@@ -331,7 +331,7 @@ You can grab the skeleton strategy from <https://github.com/c9s/bbgo/blob/main/p
 
 Now add your config:
 
-```
+```sh
 mkdir config
 (cd config && curl -o bbgo.yaml https://raw.githubusercontent.com/c9s/bbgo/main/config/minimal.yaml)
 ```
@@ -432,20 +432,20 @@ streambook.BindStream(stream)
 
 If you need redis:
 
-```shell
+```sh
 helm repo add bitnami https://charts.bitnami.com/bitnami
 helm install redis bitnami/redis
 ```
 
 To get the dynamically generated redis password, you can use the following command:
 
-```shell
+```sh
 export REDIS_PASSWORD=$(kubectl get secret --namespace bbgo redis -o jsonpath="{.data.redis-password}" | base64 --decode)
 ```
 
 Prepare your docker image locally (you can also use the docker image from docker hub):
 
-```shell
+```sh
 make docker DOCKER_TAG=1.16.0
 ```
 
@@ -453,52 +453,52 @@ The docker tag version number is from the file [Chart.yaml](charts/bbgo/Chart.ya
 
 Choose your instance name:
 
-```shell
+```sh
 export INSTANCE=grid
 ```
 
 Prepare your secret:
 
-```shell
+```sh
 kubectl create secret generic bbgo-$INSTANCE --from-env-file .env.local
 ```
 
 Configure your config file, the chart defaults to read config/bbgo.yaml to create a configmap:
 
-```shell
+```sh
 cp config/grid.yaml bbgo-$INSTANCE.yaml
 vim bbgo-$INSTANCE.yaml
 ```
 
 Prepare your configmap:
 
-```shell
+```sh
 kubectl create configmap bbgo-$INSTANCE --from-file=bbgo.yaml=bbgo-$INSTANCE.yaml
 ```
 
 Install chart with the preferred release name, the release name maps to the previous secret we just created, that
 is, `bbgo-grid`:
 
-```shell
+```sh
 helm install --set existingConfigmap=bbgo-$INSTANCE bbgo-$INSTANCE ./charts/bbgo
 ```
 
 To use the latest version:
 
-```shell
+```sh
 helm install --set existingConfigmap=bbgo-$INSTANCE --set image.tag=latest bbgo-$INSTANCE ./charts/bbgo
 ```
 
 To upgrade:
 
-```shell
+```sh
 helm upgrade bbgo-$INSTANCE ./charts/bbgo
 helm upgrade --set image.tag=1.15.2 bbgo-$INSTANCE ./charts/bbgo
 ```
 
 Delete chart:
 
-```shell
+```sh
 helm delete bbgo-$INSTANCE
 ```
 
@@ -531,14 +531,14 @@ Be sure to edit both sqlite3 and mysql migration files.
 
 To test the drivers, you can do:
 
-```
+```sh
 rockhopper --config rockhopper_sqlite.yaml up
 rockhopper --config rockhopper_mysql.yaml up
 ```
 
 ### Setup frontend development environment
 
-```
+```sh
 cd frontend
 yarn install
 ```