Track master/main rename

(one of these doesn't exist on master)

Author: coke

doc/Language/modules-core.rakudoc

@@ -15,22 +15,22 @@ X<|Modules,CompUnit (Rakudo classes)>
 These modules are mostly used by distribution build tools, and are not intended
 to be used (at least until version 6.c) by the final user.
 
-=item L«C<CompUnit::Repository::Staging>|https://github.com/rakudo/rakudo/blob/master/lib/CompUnit/Repository/Staging.rakumod».
-=item L<C<CompUnit::Repository::(FileSystem|Installation|AbsolutePath|Unknown|NQP|Perl6|RepositoryRegistry)>|https://github.com/rakudo/rakudo/blob/master/src/core.c/CompUnit/RepositoryRegistry.rakumod>.
+=item L«C<CompUnit::Repository::Staging>|https://github.com/rakudo/rakudo/blob/main/lib/CompUnit/Repository/Staging.rakumod».
+=item L<C<CompUnit::Repository::(FileSystem|Installation|AbsolutePath|Unknown|NQP|Perl6|RepositoryRegistry)>|https://github.com/rakudo/rakudo/blob/main/src/core.c/CompUnit/RepositoryRegistry.rakumod>.
 
 =head2 C<NativeCall> modules
 
-=item L«C<NativeCall>|https://github.com/rakudo/rakudo/blob/master/lib/NativeCall.rakumod»    Native Calling Interface (L<docs|/language/nativecall>)
-=item L«C<NativeCall::Types>|https://github.com/rakudo/rakudo/blob/master/lib/NativeCall/Types.rakumod»    Used by C<NativeCall>
-=item L«C<NativeCall::Compiler::GNU>|https://github.com/rakudo/rakudo/blob/master/lib/NativeCall/Compiler/GNU.rakumod»    Used by C<NativeCall>
-=item L«C<NativeCall::Compiler::MSVC>|https://github.com/rakudo/rakudo/blob/master/lib/NativeCall/Compiler/MSVC.rakumod»    Used by C<NativeCall>
+=item L«C<NativeCall>|https://github.com/rakudo/rakudo/blob/main/lib/NativeCall.rakumod»    Native Calling Interface (L<docs|/language/nativecall>)
+=item L«C<NativeCall::Types>|https://github.com/rakudo/rakudo/blob/main/lib/NativeCall/Types.rakumod»    Used by C<NativeCall>
+=item L«C<NativeCall::Compiler::GNU>|https://github.com/rakudo/rakudo/blob/main/lib/NativeCall/Compiler/GNU.rakumod»    Used by C<NativeCall>
+=item L«C<NativeCall::Compiler::MSVC>|https://github.com/rakudo/rakudo/blob/main/lib/NativeCall/Compiler/MSVC.rakumod»    Used by C<NativeCall>
 
 =head2 Other modules
 
-=item L«C<Pod::To::Text>|https://github.com/rakudo/rakudo/blob/master/lib/Pod/To/Text.rakumod»    Used by several external modules
+=item L«C<Pod::To::Text>|https://github.com/rakudo/rakudo/blob/main/lib/Pod/To/Text.rakumod»    Used by several external modules
 =item L«C<Test>|/type/Test»    Test routines (see L<tutorial|/language/testing>)
-=item L«C<experimental>|https://github.com/rakudo/rakudo/blob/master/lib/experimental.rakumod»
+=item L«C<experimental>|https://github.com/rakudo/rakudo/blob/main/lib/experimental.rakumod»
 (L<documentation|/language/pragmas#index-entry-experimental__pragma>)
-=item L«C<newline>|https://github.com/rakudo/rakudo/blob/master/lib/newline.rakumod»
+=item L«C<newline>|https://github.com/rakudo/rakudo/blob/main/lib/newline.rakumod»
 
 =end pod