docs: fix codecs table data

Byelorussian to Belarusian 3 more times

Author: mr-bronson

Doc/library/codecs.rst

@@ -1103,7 +1103,7 @@ particular, the following variants typically exist:
 +-----------------+--------------------------------+--------------------------------+
 | cp852           | 852, IBM852                    | Central and Eastern Europe     |
 +-----------------+--------------------------------+--------------------------------+
-| cp855           | 855, IBM855                    | Bulgarian, Byelorussian,       |
+| cp855           | 855, IBM855                    | Belarusian, Bulgarian,         |
 |                 |                                | Macedonian, Russian, Serbian   |
 +-----------------+--------------------------------+--------------------------------+
 | cp856           |                                | Hebrew                         |
@@ -1151,7 +1151,7 @@ particular, the following variants typically exist:
 +-----------------+--------------------------------+--------------------------------+
 | cp1250          | windows-1250                   | Central and Eastern Europe     |
 +-----------------+--------------------------------+--------------------------------+
-| cp1251          | windows-1251                   | Bulgarian, Byelorussian,       |
+| cp1251          | windows-1251                   | Belarusian, Bulgarian,         |
 |                 |                                | Macedonian, Russian, Serbian   |
 +-----------------+--------------------------------+--------------------------------+
 | cp1252          | windows-1252                   | Western Europe                 |
@@ -1253,7 +1253,7 @@ particular, the following variants typically exist:
 |                 |                                |                                |
 |                 |                                | .. versionadded:: 3.5          |
 +-----------------+--------------------------------+--------------------------------+
-| mac_cyrillic    | maccyrillic                    | Bulgarian, Byelorussian,       |
+| mac_cyrillic    | maccyrillic                    | Belarusian, Bulgarian,         |
 |                 |                                | Macedonian, Russian, Serbian   |
 +-----------------+--------------------------------+--------------------------------+
 | mac_greek       | macgreek                       | Greek                          |