diff --git a/book/chapter-03-gbkb-reference.md b/book/chapter-03-gbkb-reference.md
index bbb76f82..a09a8d87 100644
--- a/book/chapter-03-gbkb-reference.md
+++ b/book/chapter-03-gbkb-reference.md
@@ -13,23 +13,36 @@ The table below shows the description of each one of them:
 | subjects | List of images of subjects that can be trated by the bot.                                          |
 | articles | Articles in .md that will be presented instead of text-only answers.                               |
 
-## Using Videos
+## Presenting Answers
 
-## Answering questions as videos
+## With text
+
+To answer with a text phrase, just type the answer in the Answer column. Whenever the
+search engine elects the answer as the next thing to say, the text present in this
+column will be talked.
+
+## With an article
+
+A Markdown (.md) file can be used as an answer instead of plain text, so the experience
+will be more appealing whenever the channel allow the text to be present that way. The
+answer column specifies the .md file to be presented whenever the question is elected
+as matching the user intent.
+
+## With a video
 
 To display a video on the projector, just provide the Video URL to the desired question,
 instead of specifing an text answer in the column **answer**.
 The list of answers is a series of tabular files (.tsv, .csv, etc.) inside the **tabular** directory of the .gbkb.
 
-## Calling dialogs from .gbkb
-
-### Use Dialogs as answers instead of the default content
+## With a dialog
 
 To call a dialog just when an answer would provide the desired question, just
 use dialog:*dialogName* instead of specifing an text answer in the column
 **answer**. The list of answers is a series of tabular files (.tsv, .csv, etc.)
 inside the **tabular** directory of the .gbkb.
 
+## Subject Menu 
+
 ### Associating a [Subject Menu Item](glossary.md#subject-menu-item) to a Dialog
 
 To call a dialog just when an answer would provide the desired question, just
diff --git a/book/chapter-10-contributing.md b/book/chapter-10-contributing.md
index d1e7a417..1b505230 100644
--- a/book/chapter-10-contributing.md
+++ b/book/chapter-10-contributing.md
@@ -8,3 +8,9 @@ See these guides:
 
 * [1](https://seesparkbox.com/foundry/semantic_commit_messages)
 * [2](http://karma-runner.github.io/0.10/dev/git-commit-msg.html)
+
+### Use BotLib as a local project for development
+
+1. Enter botlib directory and then run npm link;
+2. Enter BotServer folder and the run npm link botlib;
+3. Ensure package.json of both projects are synced.
\ No newline at end of file