doc(ai4dev): update workflows in README.md

doc/ai4dev/README.md

@@ -8,43 +8,53 @@ Vibe Coding
 -----------
 1. In a Linux or macOS shell, set your present working directory to Matcha's
    [scripts](../../scripts) directory.   Enter the command
-   `./create-single-source-file-programs.sh`, which creates a copy of the Matcha
-   test suite and supporting software stack all concatenated into one file:
-   test-suite.F90 in [build/single-file-programs](../../build/single-file-programs).
-2. Compile and execute test-suite.F90 to check that the output reports that
+   `./create-single-source-file-programs.sh`, which creates a copy of the
+   Matcha test suite and supporting software stack all concatenated into one
+   file in the following path relative to the project's root directory:
+   "./build/single-file-programs/test-suite.F90".
+3. Compile and execute test-suite.F90 to check that the output reports that
    all tests pass.  For example, enter
    ```bash
      gfortran -fcoarray=single -o test-suite test-suite.F90
      ./test-suite
    ```
-3. Use the contents of [vibe-coding/README.md](./vibe-coding/README.md) as your
+4. Use the contents of [vibe-coding/README.md](./vibe-coding/README.md) as your
    prompt to a large language model (LLM).
-4. In test-suite.F90, replace the lines beginning and ending with 
+5. Use an editor to edit the test-suite.F90 lines beginning and ending with 
    `module procedure laplacian` and `end procedure laplacian`, respectively,
-   with the LLM's response.
-5. Compile test-suite.F90 as in step 2 again.
-6. If test-suite.F90 doesn't compile or if running the compiled program does not
-   produce output indicating that all tests pass, then start over start over at
-   step 1 but when you reach step 3, append the following to the aforementioned
-   prompt:
-  b. The previous iteration's compile-time or run-time error messages,
-  a. "Please fix the above errors generated by the following response to my
-     previous prompt:",
-  c. The LLM-generated code from the previous iteration.
+   replacing those lines with the LLM's response.
+6. Compile test-suite.F90 as in step 2 again.
+7. If  the test-suite program doesn't compile or if running the compiled
+   program doesn't produce output indicating that all tests pass, then start
+   over at step 1 but when you reach step 3, edit the prompt as follows:
+   * Append the previous iteration's compile-time error message(s) or run-time
+     error message(s) or test output.
+   * Append the text "Please fix the above errors that were generated by
+     compiling the following candidate solution to this prompt:".  If the
+     program compiled but runtime errors resulted, replace "compiling" with
+     "running" in the previous sentence.  If the program ran without errors,
+     but tests failed replace "compiling" with "running" and replace "errors"
+     with "test failures".
+   * Append LLM-generated code from the previous iteration.
 
 Idiomatic Vibe Coding
 ---------------------
-Follow the [vibe coding](#vibe-coding) steps except as described below.
-
-* In your first prompt, attach the file test-suite.F90 with the lines
-  from `module procedure laplacian` to `end procedure` removed.
-  Rename the file test-suite.txt if the LLM rejects .F90 file extensions.
-  Add the text "Inserting your response into subdmodule subdomain_s,
-  and compiling and running the attached program must generate output 
-  indicating that all tests pass."
-* If inserting the LLM's repsonse into subdomain_s leads to compile-time or
-  runtime errors or if any tests fail, attach the file containing the program
-  with the LLM's response inserted. Add the text "Please fix the attached
-  program, which contains a candidate solution to the above prompt.  The candidate
-  solution generates the following messages:"  Insert any compile-time or
-  runtime error messages or test output.
+Follow the [vibe coding](#vibe-coding) steps except as described below:
+* In your first prompt, attach test-suite.F90 with the lines from
+  `module procedure laplacian` to `end procedure laplacian` removed.  If the
+  LLM rejects ".F90" file extensions, change the name to "test-suite.txt".
+  Appened following to the prompt: "Inserting a correct response to this
+  prompt into the subdmodule subdomain_s and then compiling and running the
+  attached program must generate output indicating that all tests pass."
+* In subsequent iterations, if replacing the laplacian procedure with the
+  LLM's most recent response leads to compile-time or runtime errors or if any
+  tests fail, update the test-suite program, replacing laplacian with the most
+  recent LLM response. Attach the updated program to each prompt.
+* In the second bullet of vibe coding step 7, replace the suggested text wit
+  "Please fix the above errors that were generated by compiling the attached
+  program, which contains an incorrect laplacian procedure."  If the program
+  compiled but runtime errors resulted, replace "compiling" with "running" in
+  the previous sentence.  If the program ran without errors, but tests failed,
+  replace "compiling" with "running" and replace "errors" with "test failures".
+* Skip the third bullet in vibe coding step 7 because with idiomatic vibe
+  coding, the complete software stack is contained in an attachment.