Update GUIDELINES.md

GUIDELINES.md

@@ -64,11 +64,11 @@
 - Consider omitting them if they form a consistent “texture” (especially if made up of non-word sounds) or are not “countable” (due to extensive delay/reverb etc.)
 - Voices singing in unison/homophony with (near-)identical lyrics are considered as a single unit and **not** as separate vocal lines, should be transcribed only once
 - Do **not** use parentheses to simply identify a “secondary” vocalist, but rather for contrast within a single line/section; consider that a singer's role may change (even many times) over the course of the song
-- If there are two or more vocalists but they have equal importance (equal volume, equal amount of content) such as in a duet, avoid using parentheses systematically
+- If there are two or more vocalists, but they have equal importance (equal volume, equal amount of content) such as in a duet, avoid using parentheses systematically
 
 ## Non-word vocal sounds
 
-- Mostly should be transcribed but consider if they contribute to the content of the song (if they are part of background vocals, see above)
+- Mostly should be transcribed, but consider if they contribute to the content of the song (if they are part of background vocals, see above)
 - Language-specific!
     - English: *oh, ah, la, leh, mmm, ooh, doo, da, uh, whoa, wee, yo, ayy, hey, ayo, brr, ha, …*
     - Spanish: *oh, ah, la, ay, ey, oy, jaja, ajá, …*
@@ -91,10 +91,10 @@ We use **neue deutsche Rechtschreibung**.
 
 #### Apostrophes
 
-We follow the rules from [Duden](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph) but made a few additional rules to improve consistency:
+We follow the rules from [Duden](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph), but made a few additional rules to improve consistency:
 
-1. At the end of a word, when an -e is omitted, we generally use apostrophes **except in the case of imperatives**. Example: `Komm her!` but `Ich komm' her`. See rule [D13/2](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph#D13)
-2. Contractions with `e` in the middle of a word. We apply the rules See rule [D13/1](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph#D13) in many cases except for when its harder to read: `seh'n` but `verstehn`.
+1. Elision of _e_ at the end of a word: we generally use apostrophes **except in the case of imperatives**. Example: _Komm her!_ but _Ich komm' her_. See rule [D13/2](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph#D13).
+2. Elision of _e_ in the middle of a word: We apply the rules in many cases except for when it is harder to read: _seh'n_ but _verstehn_. See rule [D13/1](https://www.duden.de/sprachwissen/rechtschreibregeln/apostroph#D13).
 
 ### 🇫🇷 French