it would be nice if it were straightforward to make vertical spacing bigger in markdown

README.md

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 #### AGPL v3
   
   
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 ### Oh no, what is it this time?
 Sunbeam is a simple and fast multi-endpoint TCP relay for  
 for um  
 we swear we had a perfectly reasonable use in mind, but we honestly can't remember it now.  
   
   
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 ### What it does
 Sunbeam is a little tiny server that passes data between TCP connections.  
 
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 `sunbeam [-l] [local port] [remote address]:[port]`  
   
   
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 ### How to block IP addresses
 It's 2019, and a server that can't filter incoming connections is a server that belongs to The
 Enemy. That's why Sunbeam, minimal as it is, includes this functionality nonetheless.  
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 parse each line as an IP address (v4 or v6 are both fine), and immediately drop any incoming
 connections from those addresses.  
   
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 ### How to make ports private
 In case you want a port only to be accessible locally - e.g. if you're running a streaming server
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 If a port is suffixed with both `w` and `p`, whichever is listed last will take precedence.  
   
   
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 ### Why you can't give it domain names
 Rust has a minimal standard library. One consequence of this is the fact that there's no way to 
 resolve a domain name without depending on external crates or writing an entire DNS client from 
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 be easier to use at the expense of those things.  
   
   
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 ### Why it's called that
 This program is called "Sunbeam" because of a particular plot device that we thought was clever
 in the sci-fi novel *The Three Body Problem* by Cixin Liu. A character discovers that, due to a