fix: usage of wrong styling method

src/stemmata.md

@@ -8,7 +8,7 @@ layout: Layout
 
 ## The Arabic tradition{.text-h2 .mt-4 .mb-6 .primary--text}
 
-**Author: Dr. Aly Elrefaei** {.body-2}
+Author: Dr. Aly Elrefaei {.body-2 .font-weight-bold}
 
 The Arabic and Karshuni’s manuscripts may be divided into four traditions (A, B, C, D) based on significant errors, additions and omissions, analogies and variances. The first and oldest tradition contains three witnesses (two Arabic and one Karshuni) dating from the 12th to 14th century. Only one Arabic witness from the 15th century exists for the second tradition. Seven witnesses (three karshuni and four Arabic) testify to the third tradition, which dates from the 16th to the 18th centuries. Twelve witnesses (four karshuni, eight Arabic) from the 18th and 19th centuries make up the fourth and greatest tradition.  {.body-2}
 
@@ -26,7 +26,7 @@ Textzual witnesses: Paris. ar. 3637, Paris. ar. 3656, Cam. Add. 2886, Ming. ar.
 
 ## The Syriac tradition{.text-h2 .mt-4 .mb-6 .primary--text}
 
-**Author: Simon Birol** {.body-2}
+Author: Simon Birol {.body-2 .font-weight-bold}
 
 ### I. Neo-aramaic text witnesses{.text-h3 .mt-4 .mb-6 .primary--text}