diff --git a/docs/javascript.md b/docs/javascript.md
index cf97ae0b..5208db7b 100644
--- a/docs/javascript.md
+++ b/docs/javascript.md
@@ -11,6 +11,7 @@
 - [v8.dev:](https://v8.dev/) Google’s open source high-performance JavaScript and WebAssembly engine.
 - [dev.to: JavaScript Objects](https://dev.to/shreyazz/javascript-objects-57ob)
 - [dev.to: JavaScript Arrays and its Methods](https://dev.to/insha/javascript-array-and-its-methods-432k)
+- [dev.to: 25 Métodos de Arrays en JavaScript que todo desarrollador debe conocer](https://dev.to/gdcodev/25-metodos-de-arrays-en-javascript-que-todo-desarrollador-debe-conocer-4a2d)
 - [dev.to: Getting Started with JavaScript Modules](https://dev.to/thecoollearner/getting-started-with-javascript-modules-2mkg)
 
 ## Useful websites for web developers
diff --git a/docs/ocp4.md b/docs/ocp4.md
index 1746301a..a21ce389 100644
--- a/docs/ocp4.md
+++ b/docs/ocp4.md
@@ -11,8 +11,8 @@
 - [OCP 4 Overview](#ocp-4-overview)
     - [Three New Functionalities](#three-new-functionalities)
     - [New Technical Components](#new-technical-components)
-    - [Installation & Cluster Autoscaler](#installation--cluster-autoscaler)
-        - [IPI & UPI](#ipi--upi)
+    - [Installation and Cluster Autoscaler](#installation-and-cluster-autoscaler)
+        - [IPI and UPI](#ipi-and-upi)
     - [Cluster Autoscaler Operator](#cluster-autoscaler-operator)
     - [Operators](#operators)
         - [Introduction](#introduction)
@@ -25,13 +25,13 @@
         - [Cluster Network Operator (CNO) & Routers](#cluster-network-operator-cno--routers)
         - [ServiceMesh Operator](#servicemesh-operator)
         - [Serverless Operator (Knative)](#serverless-operator-knative)
-    - [Monitoring & Observability](#monitoring--observability)
+    - [Monitoring and Observability](#monitoring-and-observability)
         - [Grafana](#grafana)
         - [Prometheus](#prometheus)
-        - [Alerts & Silences](#alerts--silences)
+        - [Alerts and Silences](#alerts-and-silences)
         - [Cluster Logging (EFK)](#cluster-logging-efk)
     - [Build Images. Next-Generation Container Image Building Tools](#build-images-next-generation-container-image-building-tools)
-    - [OpenShift Registry & Quay Registry](#openshift-registry--quay-registry)
+    - [OpenShift Registry and Quay Registry](#openshift-registry-and-quay-registry)
     - [Local Development Environment](#local-development-environment)
 - [OpenShift on Azure](#openshift-on-azure)
 - [OpenShift Youtube](#openshift-youtube)
@@ -259,7 +259,7 @@
             - manages multiple node pools (e.g. pool for testing, pool for machine learning with GPU attached, etc)
 - **Everything “just another pod”**
 
-### Installation & Cluster Autoscaler
+### Installation and Cluster Autoscaler
 - New installer openshift-install tool, replacement for the old Ansible scripts.  
 - 40 min (AWS). Terraform.
 - 2 installation patterns:
@@ -274,7 +274,7 @@
 </center>
 <br/>
 
-#### IPI & UPI
+#### IPI and UPI
 - 2 installation patterns:
     1. **Installer Provisioned Infrastructure (IPI):** On supported platforms, the installer is capable of provisioning the underlying infrastructure for the cluster. The installer programmatically creates all portions of the networking, machines, and operating systems required to support the cluster. Think of it as best-practice reference architecture implemented in code.  It is recommended that most users make use of this functionality to avoid having to provision their own infrastructure.  The installer will create and destroy the infrastructure components it needs to be successful over the life of the cluster.
     2. **User Provisioned Infrastructure (UPI):** For other platforms or in scenarios where installer provisioned infrastructure would be incompatible, the installer can stop short of creating the infrastructure, and allow the platform administrator to provision their own using the cluster assets generated by the install tool. Once the infrastructure has been created, OpenShift 4 is installed, maintaining its ability to support automated operations and over-the-air platform updates.
@@ -444,7 +444,7 @@ oc logs --namespace=openshift-ingress-operator deployments/ingress-operator
 - [openshift.com/learn/topics/serverless](https://www.openshift.com/learn/topics/serverless)
 - [redhat-developer-demos.github.io/knative-tutorial](https://redhat-developer-demos.github.io/knative-tutorial)  
 
-### Monitoring & Observability
+### Monitoring and Observability
 #### Grafana
 - Integrated Grafana v5.4.3 (deployed by default): 
 - Monitoring -> Dashboards
@@ -457,7 +457,7 @@ oc logs --namespace=openshift-ingress-operator deployments/ingress-operator
 - Project “openshift-monitoring”
 - [prometheus.io/docs/prometheus/2.7/getting_started/](https://prometheus.io/docs/prometheus/2.7/getting_started/) 
 
-#### Alerts & Silences
+#### Alerts and Silences
 - Integrated Alertmanager 0.16.2 (deployed by default):
     - Monitoring -> Alerts
     - Monitoring -> Silences 
@@ -503,7 +503,7 @@ OpenShift 4.1|5.6.16|?|5.6.16|No
 </center>
 <br/>
 
-### OpenShift Registry & Quay Registry
+### OpenShift Registry and Quay Registry
 - [OpenShift Registry & Quay](registry.md)
 
 ### Local Development Environment
diff --git a/docs/openshift.md b/docs/openshift.md
index 22d93f76..3376c935 100644
--- a/docs/openshift.md
+++ b/docs/openshift.md
@@ -1,6 +1,6 @@
 # OpenShift Container Platform
 - [OpenShift](#openshift)
-- [OpenShift Streaming & Training](#openshift-streaming--training)
+- [OpenShift Streaming and Training](#openshift-streaming-and-training)
 - [OpenShift on Public Cloud](#openshift-on-public-cloud)
     - [Azure Red Hat OpenShift ARO](#azure-red-hat-openshift-aro)
 - [Blogs](#blogs)
@@ -55,7 +55,7 @@
 * [reddit.com/r/openshift](https://www.reddit.com/r/openshift)
 * [reddit.com/r/redhat](https://www.reddit.com/r/redhat)
 
-## OpenShift Streaming & Training
+## OpenShift Streaming and Training
 - [OpenShift.tv](https://openshift.tv) 
 - [twitch.tv/redhatopenshift](https://www.twitch.tv/redhatopenshift)
 ## OpenShift on Public Cloud
diff --git a/docs/sre.md b/docs/sre.md
index 01e7ab85..4128f43f 100644
--- a/docs/sre.md
+++ b/docs/sre.md
@@ -79,7 +79,7 @@
 <details>
   <summary>Click to expand!</summary>
 
-</center>
+<center>
 <blockquote class="twitter-tweet"><p lang="en" dir="ltr">Is it hard to find SREs? Dell: Developers do a good job as SREs because they know what exactly is happening. At the same time, we are also thinking about how we can have a developer rotation model too; essentially a rotation policy which is a learning process for us.</p>&mdash; The New Stack (@thenewstack) <a href="https://twitter.com/thenewstack/status/1390691219831934981?ref_src=twsrc%5Etfw">May 7, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
 </center>
 </details>  
\ No newline at end of file