Updated getting-started.md 
Updated getting-started.md 

The logo location is in /assets/img and not in the /images/ folder as specified by on getting-started.md file.

Former-commit-id: d343f41fa4affbbaa0d8ea564263fc823f7a18f7 [formerly 0627cfa5ebb0a22ba30660d255c937a52cf6c7a7]
Former-commit-id: 379d3f4ece62b8ecd2b94b685a04cae30100fbb2
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io