[DOCS] Link to gh issue great-expectations#4152 for ruamel.yaml (grea…

…t-expectations#6799)

Co-authored-by: Anthony Burdi <[email protected]>

requirements.txt

@@ -25,7 +25,7 @@ pyparsing>=2.4
 python-dateutil>=2.8.1
 pytz>=2021.3
 requests>=2.20
-ruamel.yaml>=0.16,<0.17.18
+ruamel.yaml>=0.16,<0.17.18  # See https://github.com/great-expectations/great_expectations/issues/4152
 scipy>=0.19.0
 tqdm>=4.59.0
 typing-extensions>=3.10.0.0 # Leverage type annotations from recent Python releases