eSpeak: speech synthesis Code

Content added to README.md

README.md added

[1.48.15]
Language changes: en, fa, hr, pl, ta

[1.48.14]
Language changes: af, en, eu, fa, hi, hu, id, it, mr, pl, ta.
zh (numbers)

[1.48.13]
Changes to:
en, pt,
it, implement ordinal numbers.
eu, stress positions.
es, revert change to [t] and [k]
de, change to sounds "pr" and "kr".

[1.48.12]
Language changes: an, de, en, it, pt, ta, gu, hi, pa, ur.

[1.48.11]
Command-line: added options --sep --tie.

API, changed the meaning of the "phonememode" parameter in espeak_SetPhonemeTrace() and espeak_TextToPhonemes().

Language changes to: en, eu, pt.

[1.48.10a]
Fix: missing updates for mbrola US voices.
Fixes for language: ta.

[1.48.10]
Language changes: bn, en, it, pt, ta.
Rhythm changes: eo, es.

[1.48.09]
Fix bug in 1.48.08, mispronouncing English words when using a voice with a non-Alatin alphabet (eg. Tamil).

Language changes: en, fa, pt, ta