README.md in masking-1.0.1 vs README.md in masking-1.1.0

@@ -16,11 +16,11 @@
 gem install masking
 ```
 
 ## Requirement
 
-* Ruby 2.5/2.6/2.7
+* Ruby 2.6/2.7/3.0/3.1
 
 ## Supported RDBMS
 
 * MySQL: 5.5<sup>[1](#footnote1)</sup>, 5.6, 5.7, 8.0
 * MariaDB: 5.5, 10.0<sup>[2](#footnote2)</sup>, 10.1, 10.2, 10.3, 10.4
@@ -140,11 +140,11 @@
 * `MYSQL_HOST`: database host(default: `localhost`)
 * `MYSQL_USER`: mysql user name(default: `mysqluser`}
 * `MYSQL_PASSWORD`: password for user(default: `password`)
 * `MYSQL_DBNAME`: database name(default: `mydb`)
 
-##### with docker
+##### with docker-compose
 
 ```bash
 docker-compose -f docker-compose.yml -f docker-compose/mysql80.yml run -e MYSQL_HOST=mysql80 app acceptance/run_test.sh
 ```
 
@@ -177,9 +177,10 @@
 
 ```bash
 docker build . -t masking
 echo "sample stdout" | docker run -i masking
 docker run masking -v
+docker run --entrypoint sh -it masking # inside of docker container
 ```
 
 ## Profiling
 
 use `bin/masking_profile`