use markdown syntax for images
Now they render right on non-Github forges.
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@ -25,7 +25,7 @@ make linux # replace with 'macosx', etc. depending on your OS
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src/teliva hanoi.tlv
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```
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<img alt='screenshot of Teliva running the Towers of Hanoi' src='doc/hanoi.png'>
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![screenshot of Teliva running the Towers of Hanoi](doc/hanoi.png)
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No matter what app you run, you are always guaranteed access to a single
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obvious, consistent way (currently the hotkey `ctrl-u`) to inspect its
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@ -35,7 +35,7 @@ When you look under the hood of an app, the first thing you see is a
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_big-picture view_ which shows the app's major data structures and a top-down
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view of the app's code.
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<img alt='screenshot of big-picture view for the Towers of Hanoi' src='doc/hanoi-big-picture.png'>
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![screenshot of big-picture view for the Towers of Hanoi](doc/hanoi-big-picture.png)
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Select a definition, make a change, hit `ctrl-x`, and the app will run with
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your updates. ([video](https://archive.org/details/akkartik-2021-11-14))
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@ -94,6 +94,7 @@ function temporary_filename_in_same_volume(filename)
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-- file doesn't exist yet; create a placeholder and return it
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local handle = io.open(temporary_filename, 'w')
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if handle == nil then
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-- HERE: if an app doesn't have permissions, attempts to write to disk eventually get here
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error("this is unexpected; I can't create temporary files..")
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end
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handle:close()
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