minor fixes

Author: iliakan

5-network/10-long-polling/article.md

@@ -70,11 +70,13 @@ As you can see, `subscribe` function makes a fetch, then waits for the response,
 ```warn header="Server should be ok with many pending connections"
 The server architecture must be able to work with many pending connections.
 
-Certain server architectures run one process per connection; resulting in there being as many processes as there are connections, and each process will take a lot of memory. So, too many connections will just consume it all and thereby limiting the number of connections it can handle.
+Certain server architectures run one process per connection; resulting in there being as many processes as there are connections, while each process consumes quite a bit of memory. So, too many connections will just consume it all.
 
-That's often the case for backends written in languages like PHP and Ruby. However, technically this isn't a language issue, but rather an implementation one. Most modern languages allow to implement a proper backend, but some make it easier than others.
+That's often the case for backends written in languages like PHP and Ruby.
 
-Backends written using Node.js usually don't have such problems.
+Servers written using Node.js usually don't have such problems.
+
+That said, it isn't a programming language issue. Most modern languages, including PHP and Ruby allow to implement a proper backend. Just please make sure that your server architecture works fine with many simultaneous connections.
 ```
 
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