Added descriptions to the help command

app/Appwrite/Services/help.php

@@ -15,12 +15,12 @@
 printf("\nUsage : appwrite [SERVICE] [COMMAND] --[OPTION]\n\n");
 printf("Services :\n");
 $mask = "\t%-20.20s %-125.125s\n";
-printf($mask, "avatars", "");
-printf($mask, "database", "");
-printf($mask, "functions", "");
-printf($mask, "health", "");
-printf($mask, "locale", "");
-printf($mask, "storage", "");
-printf($mask, "teams", "");
-printf($mask, "users", "");
+printf($mask, "avatars", "The Avatars service aims to help you complete everyday tasks related to your app image, icons, and avatars.");
+printf($mask, "database", "The Database service allows you to create structured collections of documents, query and filter lists of documents");
+printf($mask, "functions", "The Functions Service allows you view, create and manage your Cloud Functions.");
+printf($mask, "health", "The Health service allows you to both validate and monitor your Appwrite server's health.");
+printf($mask, "locale", "The Locale service allows you to customize your app based on your users' location.");
+printf($mask, "storage", "The Storage service allows you to manage your project files.");
+printf($mask, "teams", "The Teams service allows you to group users of your project and to enable them to share read and write access to your project resources");
+printf($mask, "users", "The Users service allows you to manage your project users.");
 printf("\nRun 'appwrite [SERVICE] help' for more information on a service.\n");