Move manual pictures to images folder to avoid the problems caused by the spaces

Move manual pictures to images folder to avoid the problems caused by the spaces

Replace spaces in anchors with '-'

Revert "Replace spaces in anchors with '-'"

This reverts commit 41bcba6ff2dc700eb01f7e4c651fc61e4dc1d288.

Remove spaces in anchors

Rename anchor IDs not to contain spaces
Merge branch 'master' of https://github.com/OpenCPN/OpenCPN