Fix test directory link in contributing section · lofcz/FastCloner@53ce6ae

src/FastCloner/Code/AhoCorasick.cs#L82

Argument of type 'Dictionary<char, AhoCorasick.Node>' cannot be used for parameter 'dictionary' of type 'Dictionary<char, AhoCorasick.Node?>' in 'Node? Extensions.GetValueOrDefault<char, Node?>(Dictionary<char, Node?> dictionary, char key, Node? defaultValue = null)' due to differences in the nullability of reference types.

src/FastCloner/Code/AhoCorasick.cs#L66

Argument of type 'Dictionary<char, AhoCorasick.Node>' cannot be used for parameter 'dictionary' of type 'Dictionary<char, AhoCorasick.Node?>' in 'Node? Extensions.GetValueOrDefault<char, Node?>(Dictionary<char, Node?> dictionary, char key, Node? defaultValue = null)' due to differences in the nullability of reference types.

src/FastCloner/Code/ReflectionHelper.cs#L30

Converting null literal or possible null value to non-nullable type.

src/FastCloner/FastClonerExtensions.cs#L34

Possible null reference return.

src/FastCloner/FastClonerExtensions.cs#L29

Possible null reference return.

src/FastCloner/FastClonerExtensions.cs#L29

Converting null literal or possible null value to non-nullable type.

src/FastCloner/FastClonerExtensions.cs#L22

Possible null reference return.

src/FastCloner/FastClonerExtensions.cs#L22

Converting null literal or possible null value to non-nullable type.