Add collecting guide to docs (ordinals#1474)

docs/src/SUMMARY.md

@@ -9,6 +9,7 @@
  - [Explorer](guides/explorer.md)
  - [Inscriptions](guides/inscriptions.md)
  - [Sat Hunting](guides/sat-hunting.md)
+ - [Collecting](guides/collecting.md)
 - [Bounties](bounties.md)
  - [Bounty 0: 100,000 sats Claimed!](bounty/0.md)
  - [Bounty 1: 200,000 sats Claimed!](bounty/1.md)

docs/src/guides/collecting.md

@@ -0,0 +1,23 @@
+Collecting
+==========
+
+Currently, [ord](https://github.com/casey/ord/) is the only wallet supporting
+sat-control and sat-selection, which are required to safely store and send rare
+sats and inscriptions, hereafter ordinals.
+
+The recommended way to send, receive, and store ordinals is with `ord`, but if
+you are careful, it is possible to safely store, and in some cases send,
+ordinals with other wallets.
+
+As a general note, receiving ordinals in an unsupported wallet is not
+dangerous. Ordinals can be sent to any bitcoin address, and are safe as long as
+the UTXO that contains them is not spent. However, if that wallet is then used
+to send bitcoin, it may select the UTXO containing the ordinal as an input, and
+send the inscription or spend it to fees.
+
+[windsok](https://github.com/windsok) has kindly written a guide to creating an
+`ord`-compatible wallet with [Sparrow](https://sparrowwallet.com/), available
+on [GitHub](https://gist.github.com/windsok/5b53a1ced6ef3eddbde260337de28980).
+Please note that if you follow this guide, you should not use the wallet you
+create to send BTC, unless you perform manual coin-selection to avoid sending
+ordinals.