add License and update readme

Author: ptyadana

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Phone Thiri Yadana
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

readme.md

@@ -14,6 +14,11 @@ Compilation of MySQL data analysis related projects, notes and challenges.
 ## SQL - Tableau Visualization Projects
 **SQL - MySQL for Data Analytics and Business Intelligence** : challenges are from [SQL - MySQL for Data Analytics and Business Intelligence](https://www.udemy.com/course/sql-mysql-for-data-analytics-and-business-intelligence/) which is an interesting course. See [details on Github](https://github.com/ptyadana/sql-tableau-data-analysis-visualization-projects).
 
+## SQL for Data-Analysis
+**SQL for Data-Analysis** : challenges are from [SQL for Data-Analysis](https://www.udacity.com/course/sql-for-data-analysis--ud198) by Udacity. See [details on Github](https://github.com/ptyadana/SQL-for-Data-Analysis).
+
+## Digital Music Store - Data Analysis
+**Digital Music Store - Data Analysis** : See [details on Github](https://github.com/ptyadana/Data-Analysis-for-Digital-Music-Store).
 
 ## Challenges
 **Ultimate MySQL** : challenges are from Udemy course [The Ultimate MySQL Bootcamp: Go from SQL Beginner to Expert](https://www.udemy.com/course/the-ultimate-mysql-bootcamp-go-from-sql-beginner-to-expert/) which is an amazing course.
@@ -24,4 +29,7 @@ Compilation of MySQL data analysis related projects, notes and challenges.
 
 **SQL for Data Analysis - Weekender Crash Course**: challenges from Udemy course [SQL for Data Analysis: Weekender Crash Course](https://www.udemy.com/course/sql-for-newbs/) which is meant for beginner. But I found it quite fun to watch the instructors. Project is "Flim Rental Store".
 
-**Complete SQL Mastery**: challenges from [Complete SQL Mastery](https://codewithmosh.com/p/complete-sql-mastery).
+**Complete SQL Mastery**: challenges from [Complete SQL Mastery](https://codewithmosh.com/p/complete-sql-mastery).
+
+## License
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details