diff --git a/09-custom-task-dolast/build.gradle b/09-custom-task-dolast/build.gradle
new file mode 100644
index 0000000..d72c443
--- /dev/null
+++ b/09-custom-task-dolast/build.gradle
@@ -0,0 +1,10 @@
+task helloWorld {
+    // Configuration phase - Gradle learns about tasks.
+    // This scope is executed first
+    description "Say hello :-)"
+
+    doLast {
+        // Execution phase
+        println "Greetings from Brno"
+    }
+}
diff --git a/README.md b/README.md
index f7a0874..005cb09 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,9 @@
-Gradle training
-===============
+# Gradle training
 
 Training files for learning Gradle
 
 
-01-build-and-test
------------------
+##01-build-and-test
 
 Example contains one class and one simple test written in TestNG.
 List all available tasks:
@@ -23,8 +21,7 @@ Run tests:
 Test report is available in build/reports/tests/index.html
 
 
-02-pmd
-------
+## 02-pmd
 
 Execute PMD check on project.
 
@@ -34,8 +31,7 @@ You should see one warning about empty if statement in source code.
 Results are stored in: build/reports/pmd/main.html
 
 
-03-checkstyle
--------------
+## 03-checkstyle
 
 Execute Checkstyle on project. Configuration of Checkstyle is stored in config/checkstyle/checkstyle.xml
 
@@ -44,8 +40,7 @@ Execute Checkstyle on project. Configuration of Checkstyle is stored in config/c
 Error report is available in file: build/reports/checkstyle/main.xml
 
 
-04-findbugs
------------
+## 04-findbugs
 
 Execute FindBugs on project.
 
@@ -54,8 +49,7 @@ Execute FindBugs on project.
 Report is available in file: build/reports/findbugs/main.html
 
 
-05-jdepend
-----------
+## 05-jdepend
 
 Execute JDepend on project.
 
@@ -65,8 +59,7 @@ Report is available in file: build/reports/jdepend/main.txt
 You should see there one dependency cyle.
 
 
-06-maven-deployer
------------------
+## 06-maven-deployer
 
 Upload artifact to local repo (directory).
 
@@ -75,8 +68,7 @@ Upload artifact to local repo (directory).
 Artifact will be stored at: /idea/training/repo
 
 
-07-c-language
--------------
+## 07-c-language
 
 It is possible to build project written in C language by gradle.
 Gradle automatically detects toolchain e.g. Visual Studio or GCC.
@@ -86,12 +78,22 @@ Gradle automatically detects toolchain e.g. Visual Studio or GCC.
 Binary is stored in build/binaries/mainExecutable
 
 
-08-c-visual-studio
-------------------
+## 08-c-visual-studio
 
 Gradle is able to generate project files for Visual Studio for C/C++.
 
     gradle mainVisualStudio
     ii .\visualStudio\mainExe.sln
 
+
+## 09-custom-task-dolast
+
+Gradle evaluates build scripts in two phases. The first one is configuration.
+Gradle examines each task definition and execute code in definition.
+The second phase is execution where it actually executes code.
+The code is stored in doLast block. If you omit that block then println
+will execute always even when you run `gradle tasks`
+
+    gradle tasks
+    gradle helloWorld
 Solution file is stored in visualStudio/mainExe.sln