[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

examples/basic_auth/README.md

@@ -4,7 +4,7 @@ This example shows how to run NGINX Prometheus Exporter with web configuration.
 configuration `web-config.yml` that enables basic authentication. It is configured to have a single user `alice` with
 password `password`.
 
-See the full documentation of the 
+See the full documentation of the
 [web configuration](https://github.com/prometheus/exporter-toolkit/blob/master/docs/web-configuration.md) for more details.
 
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->

examples/tls/README.md

@@ -4,7 +4,7 @@ This example shows how to run NGINX Prometheus Exporter with web configuration.
 configuration `web-config.yml` that enables TLS and specifies the path to the TLS certificate and key files.
 Additionally, there are two example TLS files `server.crt` and `server.key` that are used in the configuration.
 
-See the full documentation of the 
+See the full documentation of the
 [web configuration](https://github.com/prometheus/exporter-toolkit/blob/master/docs/web-configuration.md) for more details.
 
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->