A-more-complex-processor.md

-| [:arrow_left: Go to Part 4: Upload processor](upload processor)   |
+| [:arrow_left: Previous: Upload processor](upload processor)   |
 | :---------- |
 
 # A more complex processor
@@ -33,5 +33,5 @@ All input files will be placed by the CTEP in the working directory before execu
 
 The files of the processor package are installed in `/usr/local/ctep-user-processor/`. Use this path to read configuration files for instance. 
 
-| [:arrow_left: Go to Part 4: Upload and run your own processor](Upload processor) | [Go to Part 6: User Activity Manager :arrow_right:](User Activity manager) |
+| [:arrow_left: Next: Upload and run your own processor](Upload processor) | [Go to Part 6: User Activity Manager :arrow_right:](User Activity manager) |
 | :------ |-----:|
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