Typographical changes to userguide.rst
Typographical changes to userguide.rst

- Removed spaces before colons ` :` -> `:` except in code
- Capitalized Java and Python when referring to the language
- Capitalized JPype when referring to the library
- Minor spelling fixes
- Capitalized first letter in each sentence where it was skipped

icedwater/jpype,icedwater/jpype,icedwater/jpype,originell/jpype,originell/jpype,ktan2020/jpype,ktan2020/jpype,originell/jpype,ktan2020/jpype,originell/jpype,ktan2020/jpype,icedwater/jpype,originell/jpype