Fix uses of i.e. and e.g.

spec/2023-07-draft.md

@@ -639,18 +639,18 @@ with any `.out` files renamed to `.ans` (replacing existing `.ans` files).
 When that also does not exist, the test cases in `data/sample` are available for download.
 `data/sample/download` is required for interactive problems.
 
-The `data/sample/download` directory may contain anything, including e.g. a testing tool for interactive problems, and is not validated.
+The `data/sample/download` directory may contain anything, including, e.g., a testing tool for interactive problems, and is not validated.
 Testing tools may warn when test cases that are listed in `data/sample` or `data/sample/statement` do not appear in `data/sample/download`,
 or when `data/sample/download` contains test cases that do not appear in one of the two other locations.
 
 #### Validation
 
 All `data/sample/*.in` files are input-validated.
 
-When `data/sample/statement/` does not exist, `data/sample/*.ans` is output validated (i.e. must be accepted).
+When `data/sample/statement/` does not exist, `data/sample/*.ans` is output validated (i.e., must be accepted).
 
 When `data/sample/statement/` does exists, and the problem is not interactive,
-all `data/sample/statement/*.in` are input validated, and `data/sample/statement/*.out` (with fallback to `data/sample/statement/*.ans`) are output validated (i.e. must be accepted).
+all `data/sample/statement/*.in` are input validated, and `data/sample/statement/*.out` (with fallback to `data/sample/statement/*.ans`) are output validated (i.e., must be accepted).
 
 Files in `data/sample/download` are never validated, 
 although tooling may warn when there are inconsistencies between `download`, `statement`, and `data/sample/` itself.
@@ -763,7 +763,7 @@ but must time out on at least one of the hard cases.
 
 Submission glob patterns are matched against all paths to files and directories of submissions inside and relative to the `submissions/` directory.
 Test case glob patterns are matched against all paths of test groups and test cases relative to `data/`,
-excluding the trailing `.in`. Wildcards (`*`) only match within a file name (e.g., do not match `/`).
+excluding the trailing `.in`. Wildcards (`*`) only match within a file name (i.e., do not match `/`).
 A test case is matched by the glob pattern if either itself or any of its parent test groups is matched by it,
 and similarly a submission is matched if either itself or a parent directory is matched.