README: fix emphasis

README.md

@@ -54,8 +54,8 @@ This library uses [tiny-secp256k1](https://github.com/bitcoinjs/tiny-secp256k1),
 Unfortunately, this isn't a silver bullet.
 Often, Javascript itself is working against us by bypassing these counter-measures.
 
-Problems in [`Buffer (UInt8Array)`](https://github.com/feross/buffer), for example, can trivially result in catastrophic fund loss without any warning.
-It can do this through undermining your random number generation, [accidentally producing a duplicate `k` value](https://www.nilsschneider.net/2013/01/28/recovering-bitcoin-private-keys.html), sending Bitcoin to a malformed output script, or any of a million different ways.
+Problems in [`Buffer (UInt8Array)`](https://github.com/feross/buffer), for example, can trivially result in **catastrophic fund loss** without any warning.
+It can do this through undermining your random number generation, accidentally producing a [duplicate `k` value](https://www.nilsschneider.net/2013/01/28/recovering-bitcoin-private-keys.html), sending Bitcoin to a malformed output script, or any of a million different ways.
 Running tests in your target environment is important and a recommended step to verify continuously.
 
 Finally, **adhere to best practice**.