Fixing bugs in examples
Fixing bugs in examples

- Example 1 divide.sl: throws error about non-string value
- Example 2 something.sl: throws error
- Example 4: missing operation fail3
    Added operation similar to common3 but w/o custom navigation

Signed-off-by: Eckhart Beck <b9624b4d405c3ffe03fabf8699874546dace4451@eckhbeck.de>

CloudSlang/docs