fix two mispellings of WordPress

tests/e2e/env/docker/wp-cli/entrypoint.sh

@@ -31,13 +31,13 @@ URL="http://localhost:${WORDPRESS_PORT}"
 
 if $(wp core is-installed);
 then
-    echo "Wordpress is already installed..."
+    echo "WordPress is already installed..."
 else
     declare -p WORDPRESS_TITLE >/dev/null
     declare -p WORDPRESS_LOGIN >/dev/null
     declare -p WORDPRESS_PASSWORD >/dev/null
     declare -p WORDPRESS_EMAIL >/dev/null
-    echo "Installing wordpress..."
+    echo "Installing WordPress..."
     wp core install \
         --url=${URL} \
         --title="$WORDPRESS_TITLE" \