Fix grammar and typos

Co-authored-by: Andre Sailer <andre.philippe.sailer@cern.ch>

Author: tmadlener

doc/datamodel_syntax.md

@@ -157,7 +157,7 @@ between objects, just like normal `datatypes`.
 
 ## Definition of links
 Podio offers a templated `Link` class ([see here for more details](links.md))
-that allows to link two arbitrary datatypes without having to introduce a
+that allows one to link two arbitrary datatypes without having to introduce a
 `OneToOneRelation` or `OneToManyRelation` inside the corresponding datatypes. In
 order to keep the full definition of a datamodel in the YAML file it is possible
 to declare `links` in the YAML file:

python/podio_gen/julia_generator.py

@@ -75,7 +75,7 @@ def do_process_interface(self, _, __):
         return None
 
     def do_process_link(self, _, __):
-        """Julia does not support interface types yet, so this does nothing"""
+        """Julia does not support link types yet, so this does nothing"""
         return None
 
     def get_upstream_name(self):