Improve formatting in README

Author: ssg

README.md

@@ -12,8 +12,8 @@ math worked.
 
 Features
 --------
- - [Multibase](https://github.com/multiformats/multibase) support. All formats
-   covered by SimpleBase including a few Base64 variants are supported. Base2, Base8, and Base10 are also supported.
+ - **[Multibase](https://github.com/multiformats/multibase)**: All formats
+   covered by SimpleBase including a few Base64 variants are supported. **Base2**, **Base8**, and **Base10** are also supported.
  - **Base32**: RFC 4648, BECH32, Crockford, z-base-32, Geohash, FileCoin and Extended Hex 
    (BASE32-HEX) flavors with Crockford character substitution, or any other 
    custom flavors.