Fixes links in aws tutorials. (#2621)

Signed-off-by: Cyril Tovena <cyril.tovena@gmail.com>

docs/sources/clients/aws/ecs/_index.md

@@ -43,7 +43,7 @@ We will also need an [IAM Role to run containers][ecs iam] with, let's create a
 > You might already have this `ecsTaskExecutionRole` role in your AWS account if that's the case you can skip this step.
 
 ```bash
-curl https://raw.githubusercontent.com/grafana/loki/master/docs/aws/ecs/ecs-role.json > ecs-role.json
+curl https://raw.githubusercontent.com/grafana/loki/master/docs/sources/clients/aws/ecs/ecs-role.json > ecs-role.json
 aws iam create-role --role-name ecsTaskExecutionRole  --assume-role-policy-document file://ecs-role.json
 
 {
@@ -92,7 +92,7 @@ Our [task definition][task] will be made of two containers, the [Firelens][Firel
 Let's download the task definition, we'll go through the most important parts.
 
 ```bash
-curl https://raw.githubusercontent.com/grafana/loki/master/docs/aws/ecs/ecs-task.json > ecs-task.json
+curl https://raw.githubusercontent.com/grafana/loki/master/docs/sources/clients/aws/ecs/ecs-task.json > ecs-task.json
 ```
 
 ```json

docs/sources/clients/aws/eks/_index.md

@@ -217,7 +217,7 @@ helm upgrade  promtail loki/promtail -n monitoring -f values.yaml
 And deploy the `eventrouter` using:
 
 ```bash
- kubectl create -f https://raw.githubusercontent.com/grafana/loki/master/docs/clients/aws/eks/eventrouter.yaml
+ kubectl create -f https://raw.githubusercontent.com/grafana/loki/master/docs/sources/clients/aws/eks/eventrouter.yaml
 
 serviceaccount/eventrouter created
 clusterrole.rbac.authorization.k8s.io/eventrouter created