Improve the bitcoin.conf instructions in init.md doc #30153

1. 
   epiccurious commented at 12:28 pm on May 22, 2024: contributor

   Update the init.md instructions about generating an example bitcoin.conf file.

   Additionally, the share/examples/bitcoin.conf placeholder file says to follow the instructions in contrib/devtools/README.md, which was confusing to me since that README talks about many scripts. It would be helpful to point out to the user which section to refer to. (EDIT: removed this change from the PR.)

   This issue includes an accompanying PR #30154.

   Background

   • Two years ago, share/examples/bitcoin.conf was replaced with a placeholder file. To see an example bitcoin.conf, the user now runs the contrib/devtools/gen-bitcoin-conf.sh script, which replaces the placeholder file with the parsed contents of bitcoind --help.

   • The instructions in init.md about an example bitcoin.conf haven’t changed significantly since they were added almost 10 years ago.

2. achow101 closed this on Jun 4, 2024

   ---

3. Fabcien referenced this in commit a937458904 on Jun 4, 2024

Contributors
epiccurious