Update Readme.md

Author: tirthajyoti

Pandas and Numpy/Read_data_various_sources/Readme.md

@@ -1,8 +1,10 @@
 ## Notebook and data files for reading from various types of sources into Pandas DataFrame
 
 * **CSV**
+* **Simple text file**
 * **Zip (compressed) files**
 * **Excel**
 * **JSON**
+* **HTML tables**
 * **Stata (.dta)**
 * **PDF tables**