Update README.md

mergo issue resolved.

Signed-off-by: Matt Butcher <matt.butcher@microsoft.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

Updating mergo to 0.3.11

mergo had made a breaking change in 0.3.9. This was undone in 0.3.10
with a new path forward for internal reworking via a new implementation.
0.3.10 and 0.3.11 no longer break sprig functionality. This is tested.
More information at https://github.com/imdario/mergo/releases/tag/v0.3.10

Signed-off-by: Matt Farina <matt@mattfarina.com>

Extend certificate functions to handle non-RSA keys + add support for ed25519 keys

Signed-off-by: Matt Farina <matt@mattfarina.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

add all/any for evaluating multiple conditions

Signed-off-by: Matt Farina <matt@mattfarina.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

Add a bcrypt function

Add fromJson and mustFromJson funcs

Signed-off-by: Matt Farina <matt@mattfarina.com>

Signed-off-by: Matt Farina <matt@mattfarina.com>

Co-authored-by: Daniel <daniel.hoherd@gmail.com>

Adds the randBytes function to cryptographically generate a
base64-encoded string of random bytes of a given length.

Resolves #252.

The network.md documentation was added in
https://github.com/Masterminds/sprig/commit/ac14fb280b0322c1d3494610095ba68698f32bae
but was never added to index.md.