docs: Update documentation (#55)

Reorganize header and add migration instructions for 2.2.

README.md

@@ -1,17 +1,19 @@
-![Abstractions for specifications and query strategies](logos/logo-horizontal-red-black-button-slogan.png "Raiqub Expressions")
+# Raiqub Expressions
+
+_Raiqub.Expressions is a library that provides abstractions for creating specifications and query strategies using LINQ expressions. It also supports querying and writing to databases using various providers._
 
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-_Raiqub.Expressions is a library that provides abstractions for creating specifications and query strategies using LINQ expressions. It also supports querying and writing to databases using various providers._
-
 [🏃 Quickstart](#quickstart)   |   [📗 Guide](#guide)   |   [🔄 Migration](#migration-guide)
 
 <hr />
 
+![Abstractions for specifications and query strategies](https://raw.github.com/skarllot/Expressions/main/logos/logo-horizontal-red-black-button-slogan.png "Raiqub Expressions")
+
 ## Features
 * Easily define and compose specifications to encapsulate business rules
 * Create custom query strategies for flexible and efficient data retrieval
@@ -362,8 +364,8 @@ If you need to use another ORM library, you will need to implement your own data
 
 ## Migration Guide
 
-### Key Changes in 2.0.0
-In the Version 2.0.0 release of our library, the `IQueryModel`-related interfaces and classes was renamed to `IQueryStrategy`. These changes are summarized in the table below:
+### Key Changes in 2.0
+In the version 2.0, the `IQueryModel`-related interfaces and classes was renamed to `IQueryStrategy`. These changes are summarized in the table below:
 
 | V1                                       | V2                                          |
 |------------------------------------------|---------------------------------------------|
@@ -376,6 +378,9 @@ We chose to rename these interfaces and classes to use the "Strategy" suffix (`I
 
 It's important to note that the `IEntityQueryStrategy` interface now extends the `IQueryStrategy` interface. This hierarchy reflects the relationship between entity-specific query strategies and general query strategies. You can use this inheritance structure to create custom query strategies that build upon the foundation provided by `IQueryStrategy`.
 
+### Key Changes in 2.2
+In the version 2.2, extension methods for `IDbSession` and `IDbQuery` were added to respective interface contract. And `IEntityQueryStrategy` interface no longer extends the `IQueryStrategy` interface.
+
 ## Contributing
 
 If something is not working for you or if you think that the source file