Update README.md

README.md

@@ -4,22 +4,6 @@ This dataset extension provides the `#in_batches` method. The method splits data
 
 Note: currently only PostgreSQL database is supported.
 
-You can set the following options:
-
-### pk
-Overrides primary key of your dataset. This option is required in case your table doesn't have a real PK, otherwise you will get `Sequel::Extensions::Batches::MissingPKError`.
-
-Note that you have to provide columns that don't contain NULL values, otherwise this may not work as intended. You will receive `Sequel::Extensions::Batches::NullPKError` in case batch processing detects a NULL value on it's way, but it's not guaranteed since it doesn't check all the rows for performance reasons.
-
-### of
-Sets chunk size (1000 by default).
-
-### start
-A hash `{ [column]: <start_value> }` that represents frame start for batch processing. Note that you will get `Sequel::Extensions::Batches::InvalidPKError` in case you provide a hash with wrong keys (ordering matters as well).
-
-### finish
-Same as `start` but represents the frame end.
-
 ## Installation
 
 Add this line to your application's Gemfile:
@@ -67,6 +51,24 @@ Event.where(type: "login").in_batches(options) do |ds|
 end
 ```
 
+## Options
+
+You can set the following options:
+
+### pk
+Overrides primary key of your dataset. This option is required in case your table doesn't have a real PK, otherwise you will get `Sequel::Extensions::Batches::MissingPKError`.
+
+Note that you have to provide columns that don't contain NULL values, otherwise this may not work as intended. You will receive `Sequel::Extensions::Batches::NullPKError` in case batch processing detects a NULL value on it's way, but it's not guaranteed since it doesn't check all the rows for performance reasons.
+
+### of
+Sets chunk size (1000 by default).
+
+### start
+A hash `{ [column]: <start_value> }` that represents frame start for batch processing. Note that you will get `Sequel::Extensions::Batches::InvalidPKError` in case you provide a hash with wrong keys (ordering matters as well).
+
+### finish
+Same as `start` but represents the frame end.
+
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/umbrellio/sequel-batches.