Tweak wording in a few places. (#1148)

I was re-reviewing recent changes, and noticed a few places that I
thought could be worded more clearly.

I know 9u has come up as a topic again, but I've kept this PR strictly
to wording changes.

wca-guidelines.md

@@ -168,7 +168,7 @@ To be more informative, each Guideline is classified using one of the following
 - A1a2+) [ADDITION] In case of a cumulative time limit, the judge records the original recorded time for a DNF on the score sheet in parentheses, e.g. "DNF (1:02.27)".
 - A1a2++) [EXAMPLE] If a round has only a cumulative time limit of 30 minutes and the competitor's results of the first two attempts are 6:00 and DNF (10:00), then the time limit for the third attempt is 30:00 - 6:00 - 10:00 = 14:00. For this particular example, note that only the final result for an attempt counts. Therefore, a third attempt with an original recorded time of 13:59 without penalties meets the time limit because the final result is 13:59 (see [Regulation 9f2](regulations:regulation:9f2)), while a third attempt with a result of 13:59 + 2 = 14:01 does not meet the time limit.
 - A1a2+++) [ADDITION] If the result from an attempt is unavailable (e.g. the timer was reset), the judge should consult the WCA Delegate and make an estimate of the elapsed time for the attempt. This estimate counts towards the time limit, but must not be used as the basis of an official result for the individual attempt.
-- A1a2++++) [EXAMPLE] If a round has a cumulative time limit of 20 minutes and a time limit of 8 minutes, and the competitor's results of the first two attempts are 7:00 and 7:30, then the time limit for the third attempt is the lowest time of 20:00 - 7:00 - 7:30 = 5:30 and 8:00, i.e. 5:30.
+- A1a2++++) [EXAMPLE] If a round has a cumulative time limit of 20 minutes and a time limit of 8 minutes, and the competitor's results of the first two attempts are 7:00 and 7:30, then the time limit for the third attempt is the lower time of 5:30 (calculated as 20:00 - 7:00 - 7:30) and 8:00, i.e. 5:30.
 - A1a2+++++) [CLARIFICATION] If a competitor reaches a cumulative time limit, the result for each of their remaining attempts in the round is recorded as DNS (Did Not Start).
 - A1a2++++++) [CLARIFICATION] If a cumulative time limit applies to a combination of rounds for different events, the order in which attempts are done is the order in which those attempts count towards the cumulative time limit.
 - A1a3+) [REMINDER] The organization team and the WCA Delegate must be mindful that time limits influence the strategies of the competitors (e.g. rushing the first two attempts in hopes of meeting a cutoff in a cutoff round), and that changing time limits after the start of the round can disadvantage some competitors unfairly.

wca-regulations.md

@@ -138,7 +138,7 @@ Note: Because Article and Regulation numbers are not reassigned when Regulations
         - 3h4b) Puzzle design customizations that do not give an unfair advantage may be permitted, at the discretion of the WCA Delegate (e.g. checkerboard pattern clocks, faces with a custom design, tape on the side of the Clock).
         - 3h4c) Customizations which distinguish pins from other pins of the same side are permitted, at the discretion of the WCA Delegate.
         - 3h4d) Logos anywhere on the puzzle, as long as the inner clock faces remain uncovered.
-    - 3h5) On Clock, loose pins (i.e. pins that can toggle or recede using gravity instead of being directly pressed) are not considered reasonable wear, and these puzzles must not be permitted.
+    - 3h5) For Clock, loose pins (i.e. pins that can toggle or recede using gravity instead of being directly pressed) are not considered reasonable wear, and puzzles with such pins must not be permitted.
 - 3j) Puzzles must be clean, and must not have any markings, elevated pieces, damage, or other differences that significantly distinguish any piece from a similar piece. Exception: a logo (see [Regulation 3l](regulations:regulation:3l)).
     - 3j1) Puzzles are permitted to have reasonable wear, at the discretion of the WCA Delegate.
     - 3j2) Definition: Two pieces are similar to each other if they are identical in shape and size, or mirrored in shape and identical in size.
@@ -286,7 +286,7 @@ Note: Because Article and Regulation numbers are not reassigned when Regulations
     - 9t3) If any change occurs to the result of a competitor, such that another competitor should not have advanced to the next round, the result of the second competitor must not be removed.
 - 9u) A competition is considered to have ended if all the following requirements are met simultaneously:
     - 9u1) All the scheduled rounds in the WCA website are completed.
-    - 9u2) The WCA Delegate announces the end of the competition. If the WCA Delegate does not announce the end of the competition, at least one of the following conditions are required:
+    - 9u2) The WCA Delegate has announced the end of the competition. If the WCA Delegate does not announce the end of the competition, either of the following takes the place of this announcement (whichever comes first):
         - 9u2a) All the listed WCA Delegates permanently leave the venue.
         - 9u2b) The end of the last calendar date of the competition is reached.