Update README.md

Author: gperretta

README.md

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 # Java Algorithms and Data Structures
- Collection of some Java algorithms and data structures. 
+
+Learning-by-doing exercises for a Software Engineering university course & final exam. 
+
+
+## Searching Algorithms
+
+- Linear search
+- Binary search
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+## Sorting Algorithms
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+- Insertion sort
+- Selection sort
+- Bubble sort
+- Quick sort
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+## Data structures example
+
+- Implementation of a Linked List using _java.util.package_
 
-<sub> _Learning-by-doing exercises for a Software Engineering university course & final exam._ </sub>
+