Add polymorphism section to README

[daixtrose]

Added a section on polymorphism with links to slides and source code.

Summary by CodeRabbit

• Documentation
  • Added a new “Polymorphism in C++” subsection with links to slides and source code.
  • Inserted the subsection in two locations: after the introductory note and within “Basic C++ Concepts Explained.”
  • Clarifies learning resources without modifying application behavior or logic.
  • Improves discoverability of C++ polymorphism materials for readers.

[coderabbitai]

Walkthrough

Adds a "Polymorphism in C++" subsection with links to slides and source code to README.md, inserted twice: after the introductory note and under "Basic C++ Concepts Explained." No code, API, or control-flow changes.

Changes

Cohort / File(s)	Summary
Documentation README.md	Added subsection "Polymorphism in C++" with links to slides and source code; inserted in two locations (post-intro note and under "Basic C++ Concepts Explained"). No code or API changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

Hop hop! I pen with gleeful might,
A polymorphic note in daylight—
Twice it blooms, a learning seed,
Slides and code for every need.
Ears up high, I stamp approval 🐇✨
Docs refined for swift removal… of doubt!

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The title “Add polymorphism section to README” accurately and succinctly captures the primary change of the pull request by indicating that a new polymorphism section is being added to the README without extraneous detail. It clearly reflects the content additions and will be understandable to teammates reviewing the history.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch add-hint-to-polymorphism-talk

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[coderabbitai]

Actionable comments posted: 1

📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1335d85 and 1f0b771.

📒 Files selected for processing (1)

• README.md (1 hunks)

🧰 Additional context used

🪛 LanguageTool

README.md

[grammar] ~45-~45: Use correct spacing
Context: ...ot yet written. ### Polymorphism in C++ Please take a look at [the slides](https...

(QB_NEW_EN_OTHER_ERROR_IDS_5)

---

[style] ~47-~47: To make your writing clearer, consider a more direct alternative.
Context: ...tten. ### Polymorphism in C++ Please take a look at [the slides](https://www.daixtr...

(TAKE_A_LOOK)

---

[grammar] ~47-~47: Use correct spacing
Context: ...#1) and the source code.

(QB_NEW_EN_OTHER_ERROR_IDS_5)

🪛 markdownlint-cli2 (0.18.1)

README.md

45-45: Trailing spaces
Expected: 0 or 2; Actual: 1

(MD009, no-trailing-spaces)

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Remove the trailing space in the heading.

Line 45 ends with a stray space (### Polymorphism in C++ ), which triggers markdownlint rule MD009. Drop that extra space so docs lint stays green.

🧰 Tools

🪛 LanguageTool

[grammar] ~45-~45: Use correct spacing
Context: ...ot yet written. ### Polymorphism in C++ Please take a look at [the slides](https...

(QB_NEW_EN_OTHER_ERROR_IDS_5)

---

[style] ~47-~47: To make your writing clearer, consider a more direct alternative.
Context: ...tten. ### Polymorphism in C++ Please take a look at [the slides](https://www.daixtr...

(TAKE_A_LOOK)

---

[grammar] ~47-~47: Use correct spacing
Context: ...#1) and the source code.

(QB_NEW_EN_OTHER_ERROR_IDS_5)

🪛 markdownlint-cli2 (0.18.1)

45-45: Trailing spaces
Expected: 0 or 2; Actual: 1

(MD009, no-trailing-spaces)

🤖 Prompt for AI Agents

In README.md around lines 45 to 47, the heading "### Polymorphism in C++ "
contains a trailing space triggering markdownlint MD009; remove the extra space
at the end of the heading so it reads "### Polymorphism in C++" and keep the
rest of the line intact.