Merge branch 'add-handwashing' into 'develop'

Handwashing

See merge request R3-core/howto-cards-internal!171

handwashing/handwashing.md

+---
+layout: page
+permalink: /internal/lab/handwashing/
+shortcut: lab:handwashing
+redirect_from:
+  - /cards/lab:handwashing
+  - /internal/cards/lab:handwashing
+---
+# Handwashing
+
+The procedure aims to describe the good practices in handwashing before and after laboratory manipulations.
+
+## Description
+
+1.	Handwashing is performed before doing any experiment in the lab as well as before exiting the laboratory.
+
+2.	A good handwashing is essential to avoid contamination and must last at least 40 seconds.
+
+3.	Consider the sink, including the faucet, as contaminated and avoid direct contact with them.
+
+4.	Wet your hands with water.
+
+5.	Dispense a dose of soap in the palm of your hand.
+
+6.	Rub your hands palm to palm.
+
+7.	Rub your right palm over left dorsum with interlaced fingers and vice versa.
+
+8.	Rub palm to palm with fingers interlaced.
+
+9.	Rub the back of your fingers to the opposing palms with fingers interlocked.
+
+10.	Perform a rotational rubbing of the left thumb clasped in the right palm and vice versa.
+
+11.	Perform a rotational rubbing backwards and forwards with clasped fingers of the right hand in the left palm and vice versa.
+
+12.	Rinse your hands with water.
+
+13.	Dry your hands thoroughly with a single use towel.
+
+14.	Use the towel to turn off the faucet
+
+<div align="center">
+<img src="img/handwashing_img_1.png">
+</div>
+