Set language information to code blocks

README.md

@@ -14,7 +14,7 @@ Download the binary archive from the [releases page](https://github.com/abicky/e
 
 For example, you can install the latest binary on a Mac with Apple silicon by the following commands:
 
-```
+```sh
 curl -LO https://github.com/abicky/ecsmec/releases/latest/download/ecsmec_darwin_arm64.tar.gz
 tar xvf ecsmec_darwin_arm64.tar.gz
 mv ecsmec_darwin_arm64/ecsmec /usr/local/bin/
@@ -23,25 +23,25 @@ mv ecsmec_darwin_arm64/ecsmec /usr/local/bin/
 If you download the archive via a browser on macOS Catalina or later, you may receive the message "“ecsmec” cannot be opened because the developer cannot be verified."
 In such a case, you need to delete the attribute "com.apple.quarantine" like below:
 
-```
+```sh
 xattr -d com.apple.quarantine /path/to/ecsmec
 ```
 
 ### Install with Homebrew (macOS or Linux)
 
-```
+```sh
 brew install abicky/tools/ecsmec
 ```
 
 ### Install from source
 
-```
+```sh
 go get -u github.com:abicky/ecsmec
 ```
 
 or
 
-```
+```sh
 git clone https://github.com:abicky/ecsmec
 cd ecsmec
 make install
@@ -52,7 +52,7 @@ make install
 
 ### recreate-service
 
-```
+```console
 $ ecsmec recreate-service --help
 This command creates a new service from the specified service with overrides,
 and after the new service becomes stable, it deletes the old one.
@@ -110,7 +110,7 @@ If the service name is overridden, the operations change as follow:
 
 You need the following permissions to execute the command:
 
-```
+```json
 {
   "Version": "2012-10-17",
   "Statement": [
@@ -157,7 +157,7 @@ You need the following permissions to execute the command:
 
 ### reduce-cluster-capacity
 
-```
+```console
 $ ecsmec reduce-cluster-capacity --help
 This command reduces the capacity of the specified cluster safely
 that belong to the auto scaling group or spot fleet request.
@@ -196,7 +196,7 @@ You need the following permissions to execute the command:
 
 For a auto scaling group:
 
-```
+```json
 {
   "Version": "2012-10-17",
   "Statement": [
@@ -261,7 +261,7 @@ For a auto scaling group:
 
 For a spot fleet request:
 
-```
+```json
 {
   "Version": "2012-10-17",
   "Statement": [
@@ -336,7 +336,7 @@ For a spot fleet request:
 
 ### replace-auto-scaling-group-instances
 
-```
+```console
 $ ecsmec replace-auto-scaling-group-instances --help
 This command replaces container instances that belong to the specified
 auto scaling group and are launched before the time when this command
@@ -368,7 +368,7 @@ This command does the following operations to replace container instances:
 
 You need the following permissions to execute the command:
 
-```
+```json
 {
   "Version": "2012-10-17",
   "Statement": [
@@ -436,7 +436,7 @@ You need the following permissions to execute the command:
 
 ### terminate-spot-fleet-instances
 
-```
+```console
 $ ecsmec terminate-spot-fleet-instances --help
 This command terminates all the container instances safely that belong
 to the specified spot fleet request with state "cancelled".
@@ -463,7 +463,7 @@ This command does the following operations to terminate container instances:
 
 You need the following permissions to execute the command:
 
-```
+```json
 {
   "Version": "2012-10-17",
   "Statement": [