Merge #14511: doc: Remove explicit storage requirement from README.md

5918204 Removed explicit mention of storage requirement (squashed) (Martin Erlandsson)

Pull request description:

  Similarly discussed and fixed in the following bitcoin.org issue: bitcoin-dot-org/Bitcoin.org#2716

Tree-SHA512: 3d1e0b1e70c2e2a5003f437c7deba8bc72f487852948c298db154aaf29184fa407e122ab7fdff9bfb4e52cc6062bc2d2122bbbdf805283aed21aa685cf29681c

Author: sipa

doc/README.md

@@ -3,7 +3,7 @@ Bitcoin Core
 
 Setup
 ---------------------
-Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions (which is currently more than 100 GBs); depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.
+Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.
 
 To download Bitcoin Core, visit [bitcoincore.org](https://bitcoincore.org/en/releases/).