Fix typos and change readme file

Author: sureshHARDIYA

Chapter 13- Appendix/Appendix.ipynb renamed to Chapter 12/Appendix.ipynb

@@ -1,7 +1,8 @@
 # Hands on Exploratory Data analysis with Python
 
 Data encompasses a collection of discrete objects, events out of context, and facts. Processing such data provides a multitude of information. Processing such information based on our experience, judgment or jurisdiction elicits knowledge as the result of learning. But the million-dollar question is - how do we get meaningful information from such data? The answer to this is Exploratory Data Analysis (EDA) as a process for investigating datasets, elucidating subjects, and visualizing the outcomes. EDA is an approach for data analysis that applies a diversity of techniques to maximize certain insights into a data set; reveal underlying structure; extract significant variables; detect outliers and anomalies; test underlying assumptions; develop models, and determine best parameters for future estimations. This book "Hands-On Exploratory Data Analysis with Python" is built on providing practical knowledge about the main pillars of EDA including data cleaning, data preparation, data exploration, and data visualization. Why visualization? Well, several research studies reveal portraying data in graphical form is clearer and makes complex statistical data analyses and business intelligence more marketable.
-The readers will get the opportunity to explore open-source datasets including healthcare data, demographics data, Redcard Dataset, United Nation's AQUASTAT dataset, US Natality data, and many others. Using these real-life datasets, the readers get hands-on practice to understand the data, summarize their characteristics and visualize them for business intelligence. The book expects readers to use Pandas, a powerful library for working with data, and other core Python libraries including NumPy and SciPy, StatsModels for regression, and Matplotlib for visualization.
+
+The readers will get the opportunity to explore open-source datasets including healthcare data, demographics data, Titanic data set, Wine Quality data set, Boston housing pricing dataset, and many others. Using these real-life datasets, the readers get hands-on practice to understand the data, summarize their characteristics and visualize them for business intelligence. The book expects readers to use Pandas, a powerful library for working with data, and other core Python libraries including NumPy and SciPy, StatsModels for regression, and Matplotlib for visualization.
 
 # Chapters
 
@@ -12,13 +13,13 @@ The readers will get the opportunity to explore open-source datasets including h
 - Chapter 5: [Descriptive statistical Analysis](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%205)
 - Chapter 6: [Grouping dataset](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%206)
 - Chapter 7: [Correlation](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%207)
-- Chapter 8: [Time Series Analysis](#)
-- Chapter 9: [Regression]()
-- Chapter 10: [Model development and evaluation]()
-- Chapter 11: [EDA using Redcard Dataset]()
-- Chapter 12: [EDA using AQUASTAT Dataset]()
-- Chapter 13: [Appendix: String Manipulation](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Appendix)
+- Chapter 8: [Time Series Analysis](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%208)
+- Chapter 9: [Regression and hypothesis testing](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%209)
+- Chapter 10: [Model development and evaluation](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%2010)
+- Chapter 11: [EDA using wine quality dataset](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Chapter%2011)
+- Chapter 12: [Appendix: String Manipulation](https://github.com/PacktPublishing/hands-on-exploratory-data-analysis-with-python/tree/master/Appendix)
 
 # Contributors
 
 - [Suresh Kumar Mukhiya](https://github.com/sureshHARDIYA)
+- [Usman Ahmed](https://github.com/usman189)