Update README.md

Author: Devanshh

projects/Speech_to_text/README.md

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+# Speech-to-Text Converter
+<!--Remove the below lines and add yours -->
+This Python script converts the Speech input into Text using NLP(Natural Langauge Processing).
+
+### Requirements
+<!--Remove the below lines and add yours -->
+**Installation Required** :
+
+ Python Speech Recognition module:
+
+ `pip install speechrecognition`
+
+ PyAudio: Use the following command for linux users
+
+ `sudo apt-get install python3-pyaudio`
+
+ Windows users can install pyaudio by executing the following command in a terminal
+
+ `pip install pyaudio`
+
+ Python pyttsx3 module:
+
+ `pip install pyttsx3`
+
+### How to run the script
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+
+- Enter the audio input by speaking into the microphone.
+- Run converter_terminal.py script
+- Output Text will be displayed
+
+Just run the converter_GUI.py script and pick any JPG image from any location and then press 'Convert JPG to PDF'
+
+## *Author Name*
+<!--Remove the below lines and add yours -->
+Devansh Agarwal
+