Minor documentation fix

This release fixes an issue with the NuGet link to RELEASE.md being at the wrong level. It also corrects some minor formatting issues in the same area of the NuGet UI.

v1.1.0

Version 1.1.0

New functionality

• A saveTimestamp parameter was added to Encrypt. This defaults to true, which provides the same functionality as prior releases. Setting to false means the token will be generated with a zeroed-out creation timestamp. This is a solution for certain scenarios where unencrypted timestamps such as Fernet's are regarded as sensitive information.
• Decrypt now features automatic validation for 'clock drift' situations. This is where the decrypting system's internal clock differs from the system which generated the token. An exception is thrown if a token's creation timestamp is too far in the future. The maximum discrepancy is stored within the MaxClockDrift TimeSpan in the main project's Fernet.cs file.

Testing

A significant number of new tests were added to the unit test project, bringing the total up to more than 30:

• Tests added to exercise the entire specification, validation and generation documentation from the Fernet project repository.
• Tests added for the Utility.Base64UrlEncoder class.

Most tests now include at least summary documentation.

API Changes

• Base64UrlEncoder.DecodeBytes now throws a System.FormatException instead of a System.ArgumentException if the string passed in is invalid.

Documentation Fix

Updates

• Small update to ReadMe to correctly format icon link.

Initial Release

First deployment to NuGet. Encryption, Decryption, base64url utilities etc. all tested working. Unit test project included. Compatibility tested with Python implementation and token examples given in the specification repository.