Improve spelling and grammar, thanks @vierno

README.md

@@ -13,7 +13,7 @@ Easily setup a service level objective using prometheus, based on lessons from t
 
 # Generating
 
-Lookup [slo_example.yml](./examples/slo_example.yml) to parametize SLO and generate prometheus rules running
+Look the file [slo_example.yml](./examples/slo_example.yml) to see how to parametrize SLOs and generate Prometheus rules by running the following command:
 
 ```
 slo-generator -slo.path=slo_example.yml -rule.output rule.yml
@@ -23,9 +23,9 @@ slo-generator -slo.path=slo_example.yml -rule.output rule.yml
 
 The Workbook suggests to create classes to simplify how to set a SLO for your services, read details about concepts [here](https://landing.google.com/sre/workbook/chapters/alerting-on-slos/#alerting_at_scale)
 
-Lookup [slo_example_with_classes.yml](./examples/slo_example_with_classes.yml) and [slo_classes.yml](./examples/slo_classes.yml) to see how to define classes and associate with your services.
+Look at [slo_example_with_classes.yml](./examples/slo_example_with_classes.yml) and [slo_classes.yml](./examples/slo_classes.yml) to see how to define classes and associate with your services.
 
-After that, you can run command specifing the classes file like this:
+After that, you can run the command specifying the classes:
 
 ```
 slo-generator -slo.path=slo_example_with_classes.yml -classes.path slo_classes.yml -rule.output rule.yml

main.go

@@ -51,7 +51,7 @@ func main() {
 	}
 
 	for _, slo := range spec.SLOS {
-		// try to use any slo class weather found
+		// try to use any slo class found
 		sloClass, err := classesDefinition.FindClass(slo.Class)
 		if err != nil {
 			log.Fatalf("Could not compile SLO: %q, err: %q", slo.Name, err.Error())

slo/classes.go

@@ -3,7 +3,7 @@ package slo
 import "fmt"
 
 // Class represents a template of objectives
-// this is important to achieve a scalabe SLO policies
+// this is important to achieve scalable SLO policies
 // read more at: https://landing.google.com/sre/workbook/chapters/alerting-on-slos/#alerting_at_scale
 type Class struct {
 	Name       string     `yaml:"name"`
@@ -14,7 +14,7 @@ type ClassesDefinition struct {
 	Classes []Class `yaml:"classes"`
 }
 
-// FindClass finds for a given name if not found return an error
+// FindClass finds for a given name, if not found return an error
 func (c *ClassesDefinition) FindClass(name string) (*Class, error) {
 	if name == "" {
 		return nil, nil