After git push
Enumerating objects: 33, fatto.
Counting objects: 100% (33/33), fatto.
Delta compression using up to 8 threads
Compressing objects: 100% (28/28), fatto.
Writing objects: 100% (28/28), 5.24 MiB | 85.00 KiB/s, fatto.
Total 28 (delta 5), reused 0 (delta 0)
error: RPC failed; curl 56 OpenSSL SSL_read: SSL_ERROR_SYSCALL, errno 104
fatal: the remote partner has unexpectedly closed the connection
fatal: the remote partner has unexpectedly closed the connection
Everything up-to-date

other error message:
To https://github.com/Andrea-Paz/cin-manual-latex
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://github.com/Andrea-Paz/cin-manual-latex'
suggerimento: Updates were rejected because the remote contains work that you do
suggerimento: not have locally. This is usually caused by another repository pushing
suggerimento: to the same ref. You may want to first integrate the remote changes
suggerimento: (e.g., 'git pull ...') before pushing again.
suggerimento: See the 'Note about fast-forwards' in 'git push --help' for details.


After git pull:
Merge branch 'master' of https://github.com/Andrea-Paz/cin-manual-latex

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.
~
"/home/paz/cin-manual-latex/.git/MERGE_MSG" 7 lines, 299 characters