diff --git a/README.md b/README.md
index fbd72b26..e5014b17 100644
--- a/README.md
+++ b/README.md
@@ -66,9 +66,16 @@ _Note:_ gorest uses [GORM][21] as its ORM
 
 ## Start building
 
-_Tutorials:_ [Wiki][10]
+Please study the `.env.sample` file. It is one of the most crucial files required
+to properly set up a new project. To load all environment variables, either rename
+the `.env.sample` file to `.env`, or set all the environment variables in your
+development or production instance manually.
 
-For version `1.6.x`, I will publish new tutorials in my free time.
+_Tutorials:_
+
+For version `1.6.x`, please check the project in [example](example)
+
+For version `1.4.x` and `1.5.x`, [Wiki][10]
 
 - convention over configuration
 
@@ -88,10 +95,9 @@ import (
 - set up an environment to compile the Go codes (a [quick tutorial][41]
   for any Debian based OS)
 - install `git`
-- check the [Wiki][10] for tutorials
+- check the [Wiki][10] and [example](example) for tutorials and implementations
 
-_Note:_ Omit the line `setPkFk()` in `autoMigrate.go` file if the driver is not **MySQL**
-([check issue: 7][42])
+_Note:_ For **MySQL** driver, please [check issue: 7][42]
 
 **Note For SQLite3:**
 
diff --git a/SECURITY.md b/SECURITY.md
index 9911bf50..f31a0642 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,9 +4,8 @@
 
 | Version | Supported          |
 | ------- | ------------------ |
-| >=1.5.1 | :white_check_mark: |
-| 1.4.x   | :white_check_mark: |
-| < 1.4   | :x:                |
+| >=1.6.x | :white_check_mark: |
+| < 1.6   | :x:                |
 
 ## Reporting a Vulnerability