Remove curly braces from single-letter sound references; use quotes only for display

001 - Introduction of Reading.module

@@ -13,91 +13,91 @@ $LESSON Section 1: Vowels a, e, i, o, u
 $GRAMMAR Vowel Pronunciation Rules
 INTRO: Let's learn about the basic German vowels: a, e, i, o, and u.
 
-**a.** The letter "{a}" stands for short "{a}" or long "{a}".
+**a.** The letter "a" stands for short "a" or long "a".
 
-It stands for short "{a}" in:
+It stands for short "a" in:
 - {als}
 - {fast}
 - {Garten}
 
-It stands for long "{a}" in:
+It stands for long "a" in:
 - {da}
 - {Rat}
 - {fragen}
 
-"{ah}" and "{aa}" always stand for long "{a}":
+"ah" and "aa" always stand for long "a":
 - {nah}, {lahm}, {Bahn}
 - {Maat}, {Paar}, {Saal}
 
-**b.** The letter "{e}" stands for extra-short "{e}", short "{e}", or long "{e}".
+**b.** The letter "e" stands for extra-short "e", short "e", or long "e".
 
-It stands for extra-short "{e}" in (occurs only in unstressed syllables):
+It stands for extra-short "e" in (occurs only in unstressed syllables):
 - {habe}
 - {bekannt}
 - {getan}
 
-It stands for short "{e}" in:
+It stands for short "e" in:
 - {elf}
 - {denn}
 - {nett}
 - {rennt}
 - {fest}
 
-It stands for long "{e}" in:
+It stands for long "e" in:
 - {den}
 - {leben}
 - {Feder}
 
-"{eh}" and "{ee}" always stand for long "{e}":
+"eh" and "ee" always stand for long "e":
 - {Reh}, {geht}, {fehlt}
 - {Tee}, {Beet}, {Meer}
 
-**c.** The letter "{i}" stands for short "{i}" and long "{i}".
+**c.** The letter "i" stands for short "i" and long "i".
 
-It stands for short "{i}" in:
+It stands for short "i" in:
 - {ist}
 - {Hilfe}
 - {bitte}
 
-It stands for long "{i}" in:
+It stands for long "i" in:
 - {Igel}
 - {Bibel}
 - {Tiger}
 
-"{ie}", "{ih}", and "{ieh}" always stand for long "{i}":
+"ie", "ih", and "ieh" always stand for long "i":
 - {die}, {lieber}, {fliegen}
 - {ihm}, {ihnen}, {ihre}
 - {sieht}, {fliehen}, {empfiehlt}
 
-**d.** The letter "{o}" stands for short "{o}" and long "{o}".
+**d.** The letter "o" stands for short "o" and long "o".
 
-It stands for short "{o}" in:
+It stands for short "o" in:
 - {oft}
 - {konnte}
 - {Posten}
 
-It stands for long "{o}" in:
+It stands for long "o" in:
 - {oder}
 - {tot}
 - {loben}
 
-"{oh}" and "{oo}" always stand for long "{o}":
+"oh" and "oo" always stand for long "o":
 - {roh}, {Sohn}, {Kohle}
 - {Boot}, {Moos}, {Moor}
 
-**e.** The letter "{u}" stands for short "{u}" and long "{u}".
+**e.** The letter "u" stands for short "u" and long "u".
 
-It stands for short "{u}" in:
+It stands for short "u" in:
 - {bunt}
 - {Butter}
 - {drucken}
 
-It stands for long "{u}" in:
+It stands for long "u" in:
 - {tun}
 - {nur}
 - {guten}
 
-{uh} always stands for long "{u}":
+"uh" always stands for long "u":
 - {Kuh}, {Uhr}, {ruht}
 
 $DIALOGUE Sight Reading Exercise 1