minor #18894 [Console] Warn about writing contents and terminal height (javiereguiluz)

This PR was squashed before being merged into the 5.4 branch.

Discussion
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[Console] Warn about writing contents and terminal height

Fixes #18738.

Commits
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aee3dc6 [Console] Warn about writing contents and terminal height

Author: javiereguiluz

console.rst

@@ -374,6 +374,11 @@ Output sections let you manipulate the Console output in advanced ways, such as
 are updated independently and :ref:`appending rows to tables <console-modify-rendered-tables>`
 that have already been rendered.
 
+.. caution::
+
+    Terminals only allow overwriting the visible content, so you must take into
+    account the console height when trying to write/overwrite section contents.
+
 Console Input
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