Merge pull request #291 from stvhuang/fix/docs.md

Fix links in DOCS.md

Author: kristijanhusak

DOCS.md

@@ -3,8 +3,8 @@
 1. [Getting started with Orgmode](#getting-started-with-orgmode)
 2. [Settings](#settings)
    1. [Global settings](#global-settings)
-   2. [Agenda settings](#global-settings)
-   3. [Tags settings](#global-settings)
+   2. [Agenda settings](#agenda-settings)
+   3. [Tags settings](#tags-settings)
 3. [Mappings](#mappings)
    1. [Global mappings](#global-mappings)
    2. [Agenda mappings](#agenda-mappings)