fix: enable markdown processing in center tags and disable directory urls for V2 to resolve image rendering issues

docs/java-and-java-performance-optimization.md

@@ -175,7 +175,7 @@ En cualquier caso hay una tendencia al Heap-Offloading. El consumo de memoria en
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   <summary>Click to expand!</summary>
 
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+<center markdown="1">
 
 <div class="container">
 <iframe src="//www.slideshare.net/slideshow/embed_code/key/NpUYrnBQ59fyV6" width="595" height="485" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" style="border:1px solid #CCC; border-width:1px; margin-bottom:5px; max-width: 100%;" allowfullscreen class="video"> </iframe> <div style="margin-bottom:5px"> <strong> <a href="//www.slideshare.net/feuteston/jvm-internals-2015corkdevio" title="JVM Internals (2015)" target="_blank">JVM Internals (2015)</a> </strong> from <strong><a href="//www.slideshare.net/feuteston" target="_blank">Luiz Fernando Teston</a></strong> </div>
@@ -189,7 +189,7 @@ En cualquier caso hay una tendencia al Heap-Offloading. El consumo de memoria en
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 <blockquote class="twitter-tweet"><p lang="und" dir="ltr"><a href="https://twitter.com/hashtag/Java?src=hash&amp;ref_src=twsrc%5Etfw">#Java</a> on <a href="https://twitter.com/hashtag/Kubernetes?src=hash&amp;ref_src=twsrc%5Etfw">#Kubernetes</a> <a href="https://t.co/MRP0RwJWaG">pic.twitter.com/MRP0RwJWaG</a></p>&mdash; Bruno Borges (@brunoborges) <a href="https://twitter.com/brunoborges/status/1449655747764056073?ref_src=twsrc%5Etfw">October 17, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>