chore(docs): adding missing areas to the readme (#81)

adding missing areas to the readme

README.md

@@ -5,8 +5,38 @@ of the need to generate patches for a database; when a new field is added to a s
 new `if` checks to be created in the codebase. This library aims to solve that problem by generating the SQL patches for
 you.
 
+## What is Patcher?
+
+* **Automatic SQL Generation**: It automatically generates SQL UPDATE queries from structs, reducing the need for
+  manually
+  writing and maintaining SQL statements.
+* **Code Simplification**: It reduces the amount of boilerplate code and if-else conditions required to handle different
+  struct fields, making the codebase cleaner and easier to maintain.
+* **Struct Diffs**: It allows injecting changes from one struct to another and generating update scripts based on
+  differences, streamlining the process of synchronizing data changes.
+* **Join Support**: It supports generating SQL joins by creating structs that implement the Joiner interface,
+  simplifying
+  the process of managing related data across multiple tables.
+
 ## Usage
 
+### Configuration
+
+#### LoadDiff Options
+
+* `includeZeroValues`: Set to true to include zero values in the diff.
+* `includeNilValues`: Set to true to include nil values in the diff.
+
+#### GenerateSQL Options
+
+* `WithTable(tableName string)`: Specify the table name for the SQL query.
+* `WithWhere(whereClause WhereTyper)`: Provide a where clause for the SQL query.
+* `WithJoin(joinClause Joiner)`: Add join clauses to the SQL query.
+* `includeZeroValues`: Set to true to include zero values in the diff. (Only for NewDiffSQLPatch)
+* `includeNilValues`: Set to true to include nil values in the diff. (Only for NewDiffSQLPatch)
+
+### Basic Examples
+
 #### Basic
 
 To use the library, you need to create a struct that represents the table you want to generate patches for. The struct
@@ -254,6 +284,34 @@ the [Joiner](./joiner.go) interface.
 Once you have the join struct, you can pass it to the `GenerateSQL` function using the `WithJoin` option. You can add as
 many of these as you would like.
 
-# Examples
+## Installation
+
+To install the Patcher library, use the following command:
+
+```sh
+go get github.com/jacobbrewer1/patcher
+```
+
+## Examples
 
 You can find examples of how to use this library in the [examples](./examples) directory.
+
+## Contributing
+
+We welcome contributions! Please follow these steps to contribute:
+
+1. Fork the repository.
+2. Create a new branch for your feature or bugfix.
+3. Write tests for your changes.
+4. Run the tests to ensure everything works.
+5. Submit a pull request.
+
+To run tests, use the following command:
+
+```sh
+go test ./...
+```
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](./LICENSE) file for details.