doc: test: update/fix TestShell example instructions #26520

1. 
   theStack commented at 11:21 am on November 17, 2022: contributor

   This PR tackles two issues in the TestShell documentation:

   • add missing instruction for creating a wallet prior to the getnewaddress call (needed as there is no default wallet created anymore since v0.21)
   • fix generatetoaddress call syntax (the scripted-diff in commit fa0b916971e5bc23ad6396831940a2899ca05402 only worked for tests using BitcoinTestFramework)
2. doc: test: update/fix TestShell example instructions

   Tackles two issues in the TestShell documentation:
   - add missing instruction for creating a wallet prior to the
     `getnewaddress` call (needed as there is no default wallet created
     anymore since v0.21)
   - fix `generatetoaddress` call syntax (the scripted-diff in commit
     fa0b916971e5bc23ad6396831940a2899ca05402 only worked for tests using
     `BitcoinTestFramework`)

   31d0067f8b
3. 
   DrahtBot commented at 11:21 am on November 17, 2022: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Reviews

   See the guideline for information on the review process.

   Type	Reviewers
   ACK	fanquake

4. fanquake added the label Docs on Nov 17, 2022
5. maflcko removed the label Docs on Nov 17, 2022
6. DrahtBot added the label Docs on Nov 17, 2022
7. fanquake approved
8. 
   fanquake commented at 10:31 am on November 22, 2022: member

   ACK 31d0067f8bccd6b090bf88bad8472bb5cb1f20a4 - current instructions don’t work. These do.
9. fanquake merged this on Nov 22, 2022
10. fanquake closed this on Nov 22, 2022

    ---

11. theStack deleted the branch on Nov 22, 2022
12. sidhujag referenced this in commit 2ed063b4e4 on Nov 22, 2022
13. bitcoin locked this on Nov 22, 2023

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