fix broken links

common/utils/LOG/DOC/arch.md

 # logging facility source files
 
-The oai logging facility is implemented in two source files, located in [common/utils](https://gitlab.eurecom.fr/oai/openairinterface5g/tree/develop/common/utils)
-1. [log.c](https://gitlab.eurecom.fr/oai/openairinterface5g/tree/develop/common/utils/log.c) contains logging implementation
-1.  [log.h](https://gitlab.eurecom.fr/oai/openairinterface5g/tree/develop/common/utils/log.h) is the logging facility include file containing both private and public data type definitions. It also contain API prototypes.  
+The oai logging facility is implemented in two source files, located in [common/utils/LOG](LOG)
+1. [log.c](../log.c) contains logging implementation
+1.  [log.h](../log.h) is the logging facility include file containing both private and public data type definitions. It also contain API prototypes.  
 
 
 [logging facility  main page](log.md)