Add license, readme.

LICENSE

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+Copyright 2020 Ege Emir Özkan
+
+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

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+# Datalite
+
+Datalite is a simple Python
+package that binds your dataclasses to a table in a sqlite3 database,
+using it is extremely simple, say that you have a dataclass definition,
+just add the decorator `@sqlify(db_name="db.db")` to the top of the
+definition, and the dataclass will now be bound to the file `db.db`
+
+For example:
+
+```python
+from dataclasses import dataclass
+from datalite import sqlify
+
+
+@sqlify(db_path="db.db")
+@dataclass
+class Student:
+    student_id: int
+    student_name: str = "John Smith"
+```
+
+This snippet will generate a table in the sqlite3 database file `db.db` with
+table name `student` and rows `student_id`, `student_name` with datatypes
+integer and text, respectively. The default value for `student_name` is
+`John Smith`.
+
+## Creating a new object instance
+
+If you create a new object with default Python methods, the object will not 
+be inserted into the table by default. However, the classes that are created
+with `datalite` has a argument in their init method. So, if you write
+`Student(1, create_entry=True)` rather than just saying `Student(1)`, the
+entry equivalent of the newly created student will be inserted into
+the table without any problems.
+
+## Deleting an object instance
+
+Another method that is added to any dataclass created with `datalite` is the
+`.remove()` method. By deleting a class with the `.remove()` you will also
+delete its equivalent entry from the database.