Change "Add To Cart" button text to "Find Out More" and relink in Magento 2.2.6
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Hello everyone! Does anyone know how to change 'Add To Cart' button text and relink the button?
I followed these 2 guides to change the code in the file addtocart.phtml and list.phtml: 
<https://community.magento.com/t5/Magento-1-x-Admin-Configuration/Changing-Add-to-cart-button-text-and-relink/td-p/11658>

<https://www.tigren.com/change-add-cart-button-text-magento/>

But they're the guide for Magento 1.9. The curent version is Magento 2.2.6 and the code is different, I can change the button text,
but can not relink it. To relink the button, I created an atrribute 'get\_link' for the product to get the external URL from user's input, but it did not work.

This is the original code in the file addtocart.phtml within my theme:

```
<?php
/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

// @codingStandardsIgnoreFile

/** @var $block \Magento\Catalog\Block\Product\View */
?>
<?php $_product = $block->getProduct(); ?>
<?php $buttonTitle = __('Add to Cart'); ?>
<?php if ($_product->isSaleable()): ?>
<div class="box-tocart">
    <div class="fieldset">
        <?php if ($block->shouldRenderQuantity()): ?>
        <div class="field qty">
            <label class="label" for="qty"><span><?php /* @escapeNotVerified */ echo __('Qty') ?></span></label>
            <div class="control">

                <input type="number"
                       name="qty"
                       id="qty"
                       maxlength="12"
                       value="<?php /* @escapeNotVerified */ echo $block->getProductDefaultQty() * 1 ?>"
                       title="<?php /* @escapeNotVerified */ echo __('Qty') ?>" class="qty-default input-text qty"
                       data-validate="<?php echo $block->escapeHtml(json_encode($block->getQuantityValidators())) ?>"
                       />
                <span class="qty-main">
                    <span class="qty-btn qty-inc"><i class="fa fa-plus" aria-hidden="true"></i></span>
                    <span class="qty-btn qty-dec"><i class="fa fa-minus" aria-hidden="true"></i></span>
                </span>
                <script type="text/javascript">
                    require(['jquery'], function(){
                        jQuery(document).ready(function(){
                            jQuery('.qty-inc').click(function () {
                                jQuery('.qty-default').val(Number(jQuery('.qty-default').val())+1);
                            });

                            jQuery('.qty-dec').click(function () {
                                    var value = Number(jQuery('.qty-default').val())-1;
                                    if(value > 0){
                                        jQuery('.qty-default').val(value);
                                    }

                            });
                        });
                    });
                </script>
            </div>
        </div>
        <?php endif; ?>
        <div class="actions">
            <button type="submit"
                    title="<?php /* @escapeNotVerified */ echo $buttonTitle ?>"
                    class="action primary tocart"
                    id="product-addtocart-button">
                <span><?php /* @escapeNotVerified */ echo $buttonTitle ?></span>
            </button>
            <?php echo $block->getChildHtml('', true) ?>
        </div>
    </div>
</div>
<?php endif; ?>
<script type="text/x-magento-init">
    {
        "#product_addtocart_form": {
            "Magento_Catalog/product/view/validation": {
                "radioCheckboxClosest": ".nested"
            }
        }
    }
</script>
<?php if (!$block->isRedirectToCartEnabled()) : ?>
<script type="text/x-magento-init">
    {
        "#product_addtocart_form": {
            "catalogAddToCart": {
                "bindSubmit": false
            }
        }
    }
</script>
<?php endif; ?>

```

Or, if you know where I can find information for this problem?
Hope you will help me with this.
Thank a lot!