Update info about Enterprise license

[vpavicic]

Update the information about the Enterprise license

[vpavicic]

Memgraph provisions license keys that are tied to a specific capacity, that is, to the amount of data that can be stored in Memgraph. Once the capacity is reached, read and delete transactions will execute normally, but Memgraph will stop accepting write transactions (the transactions will throw an exception). If you have 64GB machine with a Memgraph instance licensed to 32GB, once you reach the 32GB capacity, you will be able to analyze the existing data but you will no longer be able to add new data until you upscale or free RAM by deleting some of the data.