Update README.md

Author: meili-bot

README.md

@@ -45,7 +45,7 @@ This package requires Ruby version 2.6.0 or later.
 
 With `gem` in command line:
 ```bash
-$ gem install meilisearch
+gem install meilisearch
 ```
 
 In your `Gemfile` with [bundler](https://bundler.io/):
@@ -62,8 +62,8 @@ There are many easy ways to [download and run a MeiliSearch instance](https://do
 For example, if you use Docker:
 
 ```bash
-$ docker pull getmeili/meilisearch:latest # Fetch the latest version of MeiliSearch image from Docker Hub
-$ docker run -it --rm -p 7700:7700 getmeili/meilisearch:latest ./meilisearch --master-key=masterKey
+docker pull getmeili/meilisearch:latest # Fetch the latest version of MeiliSearch image from Docker Hub
+docker run -it --rm -p 7700:7700 getmeili/meilisearch:latest ./meilisearch --master-key=masterKey
 ```
 
 NB: you can also download MeiliSearch from **Homebrew** or **APT**.