Update dockers

README.md

@@ -22,7 +22,7 @@ Simply add the following dependency to your project’s composer.json file:
 Finally you can use **Magallanes** from the vendor's bin:
 
 ```bash
-$ vendor/bin/mage version
+vendor/bin/mage version
 ```
 
 ### Codename Discovery One

docs/dockers/docker-compose.yml

@@ -1,19 +1,7 @@
 version: '2'
 services:
-    php5:
-        container_name: mage-php5
-        build: ./php5
-        volumes:
-            - ../../:/home/magephp
-
-    php7.0:
-        container_name: mage-php7.0
-        build: ./php7.0
-        volumes:
-            - ../../:/home/magephp
-
-    php7.1:
-        container_name: mage-php7.1
-        build: ./php7.1
+    php7.4:
+        container_name: mage-php7.4
+        build: ./php7.4
         volumes:
             - ../../:/home/magephp

docs/dockers/php7.0/Dockerfile → docs/dockers/php7.4/Dockerfile

@@ -1,8 +1,11 @@
-FROM ubuntu:16.04
+FROM ubuntu:20.04
+
+ENV DEBIAN_FRONTEND=noninteractive \
+    TZ=UTC
 
 RUN apt-get update && apt-get upgrade -y
 RUN apt-get install -y vim curl git unzip
-RUN apt-get install -y php7.0-cli php-zip php7.0-curl php7.0-xml
+RUN apt-get install -y php7.4-cli php-zip php7.4-curl php7.4-xml php7.4-mbstring php7.4-xdebug
 
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin/ --filename=composer