description about espeakng

Signed-off-by: Crisciany Silva <crisciany.souza@librecode.coop>

README.md

@@ -1 +1,13 @@
-# PHP wrapper for eSpeak NG
+# PHP wrapper for eSpeak NG
+
+### About eSpeak NG
+
+eSpeak is a free and open-source, cross-platform, compact, software speech synthesizer.
+
+### About eSpeak NG in this project
+
+Thinking about accessibility for visually impaired users when they need to fill out the contact form. We decided to implement the eSpeak NG library, which has the functionality to speak captcha characters.
+
+### Library Documentation
+
+https://github.com/espeak-ng/espeak-ng