docs: update readme

Author: christopher-exx

README.md

@@ -328,7 +328,6 @@ The following tests are not yet implemented and therefore missing:
 - Mandatory Test 6.1.43
 - Mandatory Test 6.1.44
 - Mandatory Test 6.1.45
-- Mandatory Test 6.1.46
 - Mandatory Test 6.1.47
 - Mandatory Test 6.1.48
 - Mandatory Test 6.1.49
@@ -435,6 +434,7 @@ export const mandatoryTest_6_1_38: DocumentTest
 export const mandatoryTest_6_1_39: DocumentTest
 export const mandatoryTest_6_1_40: DocumentTest
 export const mandatoryTest_6_1_41: DocumentTest
+export const mandatoryTest_6_1_46: DocumentTest
 ```
 
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