Fix <!-- learning:false --> annotation format and harden parser tolerance (#1751)

* Initial plan

* Fix learning:false annotation format and update parser docs/tests

- Fix workshop/00-welcome.md and workshop/06-install-gh-aw.md to use
  canonical <!-- learning:false --> (no space after colon)
- Add explicit test case for <!-- learning: false --> (spaced) variant
- Update curriculum_assessment.py docstring to list the spaced variant
  as accepted
- Update guidelines.md to note the parser tolerates both formats

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Author: Copilot

.github/skills/curriculum-quantitative-assessment/curriculum_assessment.py

@@ -71,6 +71,7 @@ def is_non_learning_page(raw: str) -> bool:
     Accepted formats include::
 
         <!-- learning:false -->
+        <!-- learning: false -->
         <!-- Learning:False -->
         <!--   learning : false   -->
     """

.github/skills/curriculum-quantitative-assessment/test_curriculum_assessment.py

@@ -77,6 +77,9 @@ def test_returns_true_for_bare_tag(self) -> None:
     def test_returns_true_case_insensitive(self) -> None:
         self.assertTrue(is_non_learning_page("<!-- Learning:False -->"))
 
+    def test_returns_true_with_space_after_colon(self) -> None:
+        self.assertTrue(is_non_learning_page("<!-- learning: false -->"))
+
     def test_returns_true_with_extra_whitespace(self) -> None:
         self.assertTrue(is_non_learning_page("<!--   learning : false   -->"))
 

.github/workflows/guidelines.md

@@ -360,7 +360,7 @@ Some workshop pages are not substantive learning steps — they are **dispatcher
 
 ### Marking a page as a dispatcher
 
-Add the comment `<!-- learning:false -->` anywhere in the file — conventionally placed immediately after the page annotation lines:
+Add the comment `<!-- learning:false -->` anywhere in the file — conventionally placed immediately after the page annotation lines. The parser also accepts `<!-- learning: false -->` (with a space after the colon), but the canonical form without the space is preferred:
 
 ```markdown
 <!-- page-journey: all -->

workshop/00-welcome.md

@@ -1,6 +1,6 @@
 <!-- page-journey: all -->
 <!-- page-adventure: core -->
-<!-- learning: false -->
+<!-- learning:false -->
 
 # Welcome to our Agent Factory Tour
 

workshop/06-install-gh-aw.md

@@ -1,6 +1,6 @@
 <!-- page-journey: all -->
 <!-- page-adventure: core -->
-<!-- learning: false -->
+<!-- learning:false -->
 # Install the gh-aw CLI Extension
 
 `gh-aw` is the CLI extension that compiles your [agentic workflow](https://github.github.com/gh-aw/introduction/overview/) Markdown files and triggers runs from your terminal. If you're on the GitHub UI path, no local installation is needed: an agent compiles the workflow, and GitHub Actions executes the committed [lock file](https://github.github.com/gh-aw/reference/glossary/#workflow-lock-file-lockyml).