diff --git a/README.md b/README.md
index e920288..e3dad5a 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,25 @@
 # | Opportunistic ZigBee |
 
+<!-- toc -->
 
+- [I. Overview](#i-overview)
+- [II. File structure](#ii-file-structure)
+- [III. Algorithm](#iii-algorithm)
+    + [1) Data structure](#1-data-structure)
+      - [Discover Request](#discover-request)
+      - [Data Message](#data-message)
+    + [2) Well](#2-well)
+    + [3) Nodes](#3-nodes)
+
+<!-- tocstop -->
 
 ## I. Overview
 
 
 
-This project aims to design and optimize a solution for an optimistic network using Arduino and [XBee](https://www.digi.com/xbee).
+This project aims to design and optimize a solution for an optimistic network using [Arduino](https://www.arduino.cc/) and [XBee](https://www.digi.com/xbee).
 
-The base scenario takes place in a mesh network of similar <u>nodes</u> ; each being subject to real-time motion. Every node has to transmit logging data (*i.e. periodically*) to a special node : the **well ** ; the well is unique in the network and is the only one that actually receives data, every other node has the same source code and behavior.
+> The base scenario takes place in a mesh network of similar <u>nodes</u> ; each being subject to real-time motion. Every node has to transmit logging data (*i.e. periodically*) to a special node : the **well ** ; the well is unique in the network and is the only one that actually receives data, every other node has the same source code and behavior.
 
 
 
@@ -24,7 +35,7 @@ The base scenario takes place in a mesh network of similar <u>nodes</u> ; each b
 
 - **distance** - the relative distance to the well. The well has a distance of 0, its direct neighbors a distance of 1 and so on.
 
-- **wave** - a distance propagation of distances throughout the network that share a common source.
+- **wave** - a propagation of distances throughout the network that share a common source.
 
 
 
@@ -61,12 +72,12 @@ Every communication follows a consistent data format which can be split into 2 t
 
 ##### Discover Request
 
-The `discover` data format is used to propagate the relative distances throughout the network. The **well** is the only node that can initiate a discover request, other nodes only make sure of the propagation.
+The `discover` request is used to propagate the relative distances throughout the network. The **well** is the only node that can initiate a discover request, other nodes only make sure of the propagation.
 
 ```c++
 struct discover {
     uint8_t opcode; // opcode = 0
-    uint8_t wave;   // id de la wave
+    uint8_t wave;   // wave id (overflows at 255 ; uint8_t)
     uint8_t dist;   // current node's distance
 };
 ```
@@ -75,7 +86,7 @@ struct discover {
 
 ##### Data Message
 
-The `data` format is sent by nodes to submit messagesca to the well.
+The `data` format is sent by nodes to submit messages to the well.
 
 ```c++
 struct message {
@@ -93,7 +104,7 @@ struct message {
 
 The well features 2 routines :
 
-1. Send <u>[discover](#discover-request)</u> requests periodically
+1. Send <u>[discover](#discover-request)</u> requests periodically.
 2. Listen for incoming [data](#data-message).