Updated Architecture (markdown)

Architecture.md

@@ -51,4 +51,4 @@ For user friendly access and modifying tasks following information should be sto
 - for every hash name one human readable filename
 
 ### Conclusion
-Files are internally stored by their `sha1sum` hashes, so it's easy to implement versioning and get rid of files with duplicity content. **Worker** also uses files by their hashes, which is great for local caching without worries about akctual version of given file. On the other hand, **Database** keep info about human readable names, so to users (teachers) are files presented in a friendly way.
+Files are internally stored by their `sha1sum` hashes, so it's easy to implement versioning and get rid of files with duplicity content. **Worker** also uses files by their hashes, which is great for local caching without worries about actual version number of given file. On the other hand, **Database** keeps info about human readable names, so to users (teachers) in **WebApp** are files presented in a friendly way.