input: I was sixteen when I really learned calculus all by myself from a book by Kowalevski a German not to be confused with Sonia Kovalevskaya
fixed: ... I was sixteen when I really learned calculus all by myself from a book by Kowalevski, a German not to be confused with Sonia Kovalevskaya ....

input: It can be either hazardous or nonhazardous
fixed: It can be either hazardous or non-hazardous.

input: fat it may help lower blood cholesterol levels Salmon contains rich omega3
fixed: ...fat, it may help lower blood cholesterol levels. Salmon contains rich omega-3...

input: You can check how the installed adapters are configured by running the following commands
fixed:
You can check how the installed adapters are configured by running the following commands: