Fix typos in syntax.md
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@ -74,7 +74,7 @@ Points of note:
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* The original text can be recovered by concatenating the texts of all tokens in order.
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* Accessing a child of particular type (for example, parameter list of a function) generally involves linerary traversing the children, looking for a specific `kind`.
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* Modifying the tree is roughly `O(depth)`.
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We don't make special efforts to guarantree that the depth is not liner, but, in practice, syntax trees are branchy and shallow.
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We don't make special efforts to guarantee that the depth is not linear, but, in practice, syntax trees are branchy and shallow.
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* If mandatory (grammar wise) node is missing from the input, it's just missing from the tree.
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* If an extra erroneous input is present, it is wrapped into a node with `ERROR` kind, and treated just like any other node.
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* Parser errors are not a part of syntax tree.
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