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docs: Update tutorial 3 (#875)

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patrick 2021-10-12 10:20:09 -06:00 committed by GitHub
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docs/src/tutorials/tutorial-3.md
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@ -43,9 +43,9 @@ Things to notice
* We create a `CpiContext` object with the target instruction's accounts and program,
here `SetData` and `puppet_program`.
* To invoke an instruction on another program, just use the `cpi` module on the crate, here, `puppet::cpi::set_data`.
* Our `Accounts` struct has a new type, `CpiAccount`, containing the target program's `Puppet`
account. Think of `CpiAccount` exactly like `ProgramAccount`, except used for accounts *not*
owned by the current program.
* Our `Accounts` struct contains the puppet account we are calling into via CPI. Accounts used for CPI are not specifically denoted
as such with the `CpiAccount` label since v0.15. Accounts used for CPI are not fundamentally different from `Program` or `Signer`
accounts except for their role and ownership in the specific context in which they are used.
::: tip
When using another Anchor program for CPI, make sure to specify the `cpi` feature in your `Cargo.toml`.