diff --git a/README.md b/README.md
index be03fcb..50710f4 100644
--- a/README.md
+++ b/README.md
@@ -42,8 +42,7 @@ dependencies {
   can additionally call setters to instantiate relationships between entities.
 - Performs foreign key checks to see whether the defined relationships make sense.
 - Extra checks on field names of returned records to prevent loading fields from one table as fields of another (no
-  implicit conversion of `FOO.FIELD` to
-  `BAR.FIELD`).
+  implicit conversion of `FOO.FIELD` to `BAR.FIELD`).
 - Supports circular references.
 - Supports adding extra (non-table) fields to entities.
 
@@ -59,16 +58,14 @@ dependencies {
 Let's assume we are working with the following table structure:
 
 ```sql
-CREATE TABLE Dog
-(
-  id     bigserial PRIMARY KEY,
-  name   text,
+CREATE TABLE Dog (
+  id bigserial PRIMARY KEY,
+  name text,
   weight int
 );
 
-CREATE TABLE Flea
-(
-  id     bigserial PRIMARY KEY,
+CREATE TABLE Flea (
+  id bigserial PRIMARY KEY,
   dog_id bigint REFERENCES Dog,
   weight int
 )
@@ -107,14 +104,14 @@ Using this library, you can specify how to instantiate the relationship between
 (i.e., how to fill the `fleas` property of `Dog`):
 
 ```java
-LoaderFactory<Dog> createLoaderFactory(){
-        var dog=new Entity<>(Tables.DOG,Dog.class);
-        var flea=new Entity<>(Tables.FLEA,Flea.class);
-        return LoaderFactory.create(dog)
-        .oneToMany(dog,flea)
-        .setManyLeft(Dog::setFleas)
-        .build();
-        }
+LoaderFactory<Dog> createLoaderFactory() {
+  var dog = new Entity<>(Tables.DOG, Dog.class);
+  var flea = new Entity<>(Tables.FLEA, Flea.class);
+  return LoaderFactory.create(dog)
+      .oneToMany(dog, flea)
+      .setManyLeft(Dog::setFleas)
+      .build();
+}
 ```
 
 Then in the code that executes the query, you can use the loader to instantiate and link POJO classes:
@@ -127,16 +124,16 @@ class Repository {
 
   void dogLog() {
     List<Dog> dogs = context.select()
-            .from(DOG)
-            .leftJoin(FLEA)
-            .on(FLEA.DOG_ID.eq(DOG.ID))
-            .collect(LOADER_FACTORY.newLoader());
+      .from(DOG)
+      .leftJoin(FLEA)
+      .on(FLEA.DOG_ID.eq(DOG.ID))
+      .collect(LOADER_FACTORY.newLoader());
 
     for (Dog dog : dogs) {
       int fleaWeight = dog.getFleas().stream().mapToInt(Flea::getWeight).sum();
       LOG.info("%s is %.0f%% fleas",
-              dog.getName(),
-              fleaWeight * 100.0 / dog.getWeight());
+               dog.getName(),
+               fleaWeight * 100.0 / dog.getWeight());
     }
   }
 }
@@ -152,37 +149,26 @@ readable as possible. New code must be covered by tests. As a rule of thumb, ove
 decrease. (There are exceptions to this rule, e.g. when more code is deleted than added.)
 
 [bettercodehub-badge]: https://bettercodehub.com/edge/badge/PicnicSupermarket/jolo?branch=master
-
 [bettercodehub-results]: https://bettercodehub.com/results/PicnicSupermarket/jolo
-
 [jolo-image]: https://i.imgur.com/MThi0ae.jpg
-
 [jooq]: https://www.jooq.org
-
 [maven-central-badge]: https://img.shields.io/maven-central/v/tech.picnic.jolo/jolo.svg
-
 [maven-central-browse]: https://repo1.maven.org/maven2/tech/picnic/jolo/
-
 [new-issue]: https://github.com/PicnicSupermarket/jolo/issues/new
-
 [new-pr]: https://github.com/PicnicSupermarket/jolo/compare
-
 [sonarcloud-badge-bugs]: https://sonarcloud.io/api/project_badges/measure?project=tech.picnic.jolo%3Ajolo&metric=bugs
-
 [sonarcloud-badge-maintainability]: https://sonarcloud.io/api/project_badges/measure?project=tech.picnic.jolo%3Ajolo&metric=sqale_rating
-
 [sonarcloud-badge-quality-gate]: https://sonarcloud.io/api/project_badges/measure?project=tech.picnic.jolo%3Ajolo&metric=alert_status
-
 [sonarcloud-badge-vulnerabilities]: https://sonarcloud.io/api/project_badges/measure?project=tech.picnic.jolo%3Ajolo&metric=vulnerabilities
-
 [sonarcloud-dashboard]: https://sonarcloud.io/dashboard?id=tech.picnic.jolo%3Ajolo
-
 [sonarcloud-measure-reliability]: https://sonarcloud.io/component_measures?id=tech.picnic.jolo%3Ajolo&metric=Reliability
-
 [sonarcloud-measure-security]: https://sonarcloud.io/component_measures?id=tech.picnic.jolo%3Ajolo&metric=Security
-
 [sonarcloud-measure-maintainability]: https://sonarcloud.io/component_measures?id=tech.picnic.jolo%3Ajolo&metric=Maintainability
-
 [travisci-badge]: https://travis-ci.org/PicnicSupermarket/jolo.svg?branch=master
-
 [travisci-builds]: https://travis-ci.org/PicnicSupermarket/jolo
+
+## todo
+- make Loader implement Collector
+  - test against WMS Insight (locally)
+- Implement Copyable to replace prototype pattern or use immutables
+- Adopt Java modules
diff --git a/src/main/java/tech/picnic/jolo/Relation.java b/src/main/java/tech/picnic/jolo/Relation.java
index bed4033..1e11c03 100644
--- a/src/main/java/tech/picnic/jolo/Relation.java
+++ b/src/main/java/tech/picnic/jolo/Relation.java
@@ -20,7 +20,7 @@
 
 /**
  * Represents a relation between two {@link Entity entities}. This class is used to extract links
- * betweens a data set's rows and set their corresponding objects' references.
+ * between a data set's rows and set their corresponding objects' references.
  *
  * @param <L> The Java class that the left-hand side of the relation is mapped to.
  * @param <R> The Java class that the right-hand side of the relation is mapped to.