Hi Chavan, thanks – I meanwhile figured it out. Here how:
(to remind, I use Magazine layout)
In templates/purity_iii/html/com_content/category/magazine_featured.php
Row 77 is for the main blog(article) image:
<?php echo JLayoutHelper::render('joomla.content.intro_image', $item); ?>
I had to wrap it so It link to the blog, so it becomes:
<?php $link = JRoute::_(ContentHelperRoute::getArticleRoute($item->slug, $item->catid)); ?>
<a href="<?php echo $link; ?>">
<?php echo JLayoutHelper::render('joomla.content.intro_image', $item); ?>
</a>
Same should be done to row 177 (above wrap) to make other featured articles images linkable.
Finally, to make Category article images linkable in Magazine Layout (the list of articles below Featured articles), repeat the above in templates/purity_iii/html/com_content/category/magazine_list.php – wrap Row 87 in above code.
That’s how I made my images linkable. Once I publish the new blog I’ll post a link to showcase :).