input: Tip Incorrect RC file association errors can be a symptom of other underlying issues within your Windows operating system
fixed: Tip: Incorrect RC file association errors can be a symptom of other underlying issues within your Windows operating system.

input: He became an accountant after the Nazi invasion of Poland but continued working in the Underground Warsaw University
fixed: He became an accountant after the Nazi invasion of Poland but continued working in the 'Underground Warsaw University'.

input: You can also see the list of these socalled wannabuild states to make sure
fixed: You can also see the list of these so-called wanna-build states to make sure.

input: During the last three days from the 20th to the 22nd there will also be an exhibition with several community projects and related companies
fixed:
During the last three days - from the 20th to the 22nd - there will also be an exhibition with several community projects and related companies.