IgnoreError

* Document ignore_error
* ignore_error only for commands

README.md

@@ -632,6 +632,35 @@ tasks:
       - echo "This will print nothing" > /dev/null
 ```
 
+## Ignore errors
+
+You have the option to ignore errors during command execution.
+Given the following Taskfile:
+
+```yml
+version: '2'
+
+tasks:
+  echo:
+    cmds:
+      - exit 1
+      - echo "Hello World"
+```
+
+Task will abort the execution after running `exit 1` because the status code `1` stands for `EXIT_FAILURE`.  
+However it is possible to continue with execution using `ignore_errors`:
+
+```yml
+version: '2'
+
+tasks:
+  echo:
+    cmds:
+      - cmd: exit 1
+        ignore_errors: true
+      - echo "Hello World"
+```
+
 ## Output syntax
 
 By default, Task just redirect the STDOUT and STDERR of the running commands