README: MA framework info.

Author: janbarasek

README.md

@@ -20,6 +20,113 @@ All dependencies you can get by [Package manager](https://github.com/baraja-core
 
 Fully compatible with `Nette 3.0` and `PHP 7.2`.
 
+## Mathematicator Framework tools structure
+
+The biggest advantage is that you can choose which layer best fits
+your needs and start build on the top of it, immediately, without the need
+to create everything by yourself. Our tools are tested for bugs
+and tuned for performance, so you can save a significant amount
+of your time, money, and effort.
+
+Framework tend to be modular as much as possible, so you should be able
+to create an extension on each layer and its sublayers.
+
+**Mathematicator framework layers** ordered from the most concrete
+one to the most abstract one:
+
+<table>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/search">
+                Search
+            </a>
+            </b>
+        </td>
+        <td>
+            Modular search engine layer that calls its sublayers
+            and creates user interface.
+        </td>
+    </tr>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/vizualizator">
+                Vizualizator
+            </a>
+            </b>
+        </td>
+        <td>
+            Elegant graphic visualizer that can render to
+            SVG, PNG, JPG and Base64.<br />
+            <u>Extensions:</u>
+            <b>
+            <a href="https://github.com/mathematicator-core/mandelbrot-set">
+                Mandelbrot set generator
+            </a>
+            </b>
+        </td>
+    </tr>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/calculator">
+                Calculator
+            </a>
+            </b>
+        </td>
+        <td>
+            Modular advance calculations layer.
+            <br />
+            <u>Extensions:</u>
+            <b>
+            <a href="https://github.com/mathematicator-core/integral-solver">
+                Integral Solver
+            </a>
+            </b>
+        </td>
+    </tr>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/engine">
+                Engine
+            </a>
+            </b>
+        </td>
+        <td>
+            Core logic layer that maintains basic controllers,
+            DAOs, translator, common exceptions, routing etc.
+        </td>
+    </tr>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/tokenizer">
+                Tokenizer
+            </a>
+            </b>
+        </td>
+        <td>
+            Tokenizer that can convert string (user input / LaTeX) to numbers
+            and operators.
+        </td>
+    </tr>
+    <tr>
+        <td>
+            <b>
+            <a href="https://github.com/mathematicator-core/numbers">
+                Numbers
+            </a>
+            </b>
+        </td>
+        <td>
+            Fast & secure storage for numbers with arbitrary precision.
+            It supports Human string and LaTeX output and basic conversions.
+        </td>
+    </tr>
+</table>
+
 Contribution
 ----