update docs

Author: npalm

docs/configuration.md

@@ -196,9 +196,9 @@ In case the setup does not work as intended, trace the events through this seque
 
 This feature is in early stage and therefore disabled by default.
 
-The termination watcher is currently watchting for spot termination notifications. The module is only taken events into account for instances tagged with `ghr:environment` by default when deployment the module as part of one of the main modules (root or multi-runner). The module can also be deployed stand-alone, in that case the tag filter needs to be tunned.
+The termination watcher is currently watching for spot termination notifications. The module is only taken events into account for instances tagged with `ghr:environment` by default when deployment the module as part of one of the main modules (root or multi-runner). The module can also be deployed stand-alone, in that case the tag filter needs to be tunned.
 
-- Logs: The module will log all termination notificatons. For each warning it will look up instance details and log the environment, instance type and time the instance is running. As well some other details.
+- Logs: The module will log all termination notifications. For each warning it will look up instance details and log the environment, instance type and time the instance is running. As well some other details.
 - Metrics: Metrics are disabled by default, this to avoid costs. Once enabled a metric will be created for each warning with at least dimensions for the environment and instance type. THe metric name space can be configured via the variables. The metric name used is `SpotInterruptionWarning`.
 
 #### Log example

docs/index.md

@@ -68,7 +68,7 @@ The AMI cleaner is a lambda that will clean up AMIs that are older than a config
 
 > This feature is Beta, changes will not trigger a major release as long in beta.
 
-The Instance Termination Wachter is creating log and optional merrics for termination of instances. Currently only spot termination warnings are watched. See [confgiuration](configuration/) for more details. 
+The Instance Termination Watcher is creating log and optional metrics for termination of instances. Currently only spot termination warnings are watched. See [configuration](configuration/) for more details. 
 
 ### Security
 

examples/termination-watcher/README.md

@@ -20,7 +20,7 @@ terraform init
 terraform apply
 ```
 
-Once a Spot instance is terminated a log line and metric will be updated. Spot termiaation can be simulated by navigating to the request and invoce an interruption. 
+Once a Spot instance is terminated a log line and metric will be updated. Spot instance termination can be simulated using the Amazon [Fault Injection Service](https://docs.aws.amazon.com/fis/latest/userguide/what-is.html) (FIS). In thw web console you can simply initiate a spot instance failure by navigate in the EC2 console to Spot Requests and choose the action initiate a spot termination event.
 
 <!-- BEGIN_TF_DOCS -->
 ## Requirements