Add url links inline

Author: Adelost

README.md

@@ -60,7 +60,8 @@ Feel free to skip to the [Conclusion](#conclusion) sections of the article to re
 
 Data serialization is ubiquitous in most areas such as sending and receiving data over the network or storing/reading data from the file system. While JSON is a common modus operandi (especially in JavaScript), using a binary serialization format typically provides an advantage in compression size and performance at the cost of losing human readability of the encoded data.
 
-Two common binary serialization formats across many programming languages are Protocol Buffers and Apache Avro. Avro is inherently a bit more compact than Protobuf, whereas Protobuf uses the additional data as field tags that could make it slightly more forgiving when changing the schema. For those interested, an excellent in-depth explanation has already been written by Martin Kleppmann: https://martin.kleppmann.com/2012/12/05/schema-evolution-in-avro-protocol-buffers-thrift.html
+Two common binary serialization formats across many programming languages are Protocol Buffers and Apache Avro. Avro is inherently a bit more compact than Protobuf, whereas Protobuf uses the additional data as field tags that could make it slightly more forgiving when changing the schema. For those interested, an excellent in-depth explanation has [already been written](https://martin.kleppmann.com/2012/12/05/schema-evolution-in-avro-protocol-buffers-thrift.html) by Martin Kleppmann.
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 In addition to this, several more recent JavaScript-oriented libraries will be included in the comparison.