Update README.md

Author: Ankit-Khule

Diff for: README.md

@@ -1,5 +1,5 @@
 # Data-Structures-in-Python
-In-built and User defined Data Structures in Python
+In-built Data Structures in Python
 
 * Data Structures are used to store and manage data. We can create structures as per our or clients need.
 * We can modify data and apply various functions or operations on it to derive the data as per our requirements.
@@ -12,18 +12,30 @@ In-built and User defined Data Structures in Python
     * List
     * Dictionary
 
-* User Defined DS 
-    * Arrays
-    * Linked List
-    * Stack
-    * Queue
-    * Tree
-    * Graph
-
 ## [Tuple](https://github.com/Ankit-Khule/Data-Structures-in-Python/blob/master/Tuples.ipynb)
+* Tuple are immutable, means they can't be changed. Once the value is stored inside a tuple it cant be modified, but we can use it to perform various actions on it.
+* Tuple are similar to a List but just the difference it is immutable.
+* Syntax to assign value inside a tuple --> tuple_name = (....)
+* Tuple cosnist of a single data type.
 
 ## [List](https://github.com/Ankit-Khule/Data-Structures-in-Python/blob/master/List.ipynb)
+* List is an ordered data structures.
+* List are mutable, which means they can be updated or replaced or deleted.
+* List can have any datatype included in it. It can mixtures of data types from string,int or tuple.
+* List is defined as List_name=[..,...]
+* Elements of the list can be iterated
+
 
 ## [Dictionary](https://github.com/Ankit-Khule/Data-Structures-in-Python/blob/master/Dictionary.ipynb)
+* Dictionary are mutable data structure, which means they can be modified.
+* Dicitonary consist of key-value pair.
+* Dictionary is defined as **dict_name={key:value,key1:value1...}**
+* Dictionary is unordered.
+
 
 ## [Sets](https://github.com/Ankit-Khule/Data-Structures-in-Python/blob/master/Sets.ipynb)
+
+* Set are mutable unordered data structures.\n",
+* They only consist of unique elements. no duplicates are present.\n",
+* Sets are also defined using {} parenthesis like dictionary but there are no key value pairs only elements seprated by comma\n",
+* **set_name={,,,}**"