Use internal links for Open Source Workshops images

[bcornec]

currently:

$ grep -r us-central .
./WKSHP-GO101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/WOD-GO-101-A-simp-introduction-to-Go-programming-language.jpeg'
./WKSHP-Spark101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/Introduction%20to%20Apache%20Spark%20Concepts.jpg'
./WKSHP-RUST101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-RUST_101_Introduction_to_the_Rust_programming_language.jpg'
./WKSHP-GIT101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-GIT_101_Get_involved_in_the_open_source_community.jpg'
./WKSHP-SPIFFE-SPIRE-101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-SPIFFE_SPIRE_101_An_introduction_to_SPIFFE_server_and_SPIRE_agent_security_concepts.jpg'
./WKSHP-Docker101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/pramod-reddy-sareddy-hpe-com/Docker101WoD.png'
./WKSHP-Docker101/import.json:  "workshopImg": "https://us-central1-grommet-designer.cloudfunctions.net/images/pramod-reddy-sareddy-hpe-com/Docker101WoD.png",
./WKSHP-Docker101/import.json:  "badgeImg": "https://us-central1-grommet-designer.cloudfunctions.net/images/pramod-reddy-sareddy-hpe-com/Opensource-Docker_101_Introduction_to_Docker_Concepts.jpg",
grep: ./WKSHP-Docker101/.wod.yml.swp : fichiers binaires correspondent
grep: ./WKSHP-Docker101/.import.json.swp : fichiers binaires correspondent
./WKSHP-ML101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/Machine%20Learning%20101%20-%20Introduction%20to%20ML%20concepts.jpg'
./WKSHP-Tensorflow101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-Stackstorm_101_Introduction_to_the_Stackstorm_automation_features.jpg'
./WKSHP-Ansible101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/pramod-reddy-sareddy-hpe-com/WOD_OpenSource_Introduction_to_Ansible_Concepts.png'
./WKSHP-StackStorm101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-Stackstorm_101_Introduction_to_the_Stackstorm_automation_features.jpg'
./WKSHP-Jupyter-Notebooks101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-Jupyter_Notebooks_101_A_simple_how_to_on_Jupyter_Notebooks.jpg'
./WKSHP-Grommet/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-Streamline_app_development_with_open_source_Grommet.jpg'
./WKSHP-Podman101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/WOD-Podman101-introduction-to-Podman-concepts.jpg'
./WKSHP-Python201/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/Python201-Advanced-Concept-programming.jpg'
./WKSHP-DataVisu101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/frederic-passeron-hpe-com/Data%20Visualization%20101%20-%20Introduction%20to%20Data%20Visualization%20concepts.jpg'
./WKSHP-API101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-API_101_REST_API_basics_and_the_value_they_provide.jpg'
grep: ./WKSHP-API101/.wod.yml.swp : fichiers binaires correspondent
./WKSHP-Python101/wod.yml:workshopImg: 'https://us-central1-grommet-designer.cloudfunctions.net/images/jay-giang-hpe-com/WOD_Opensource-Python_101_Introduction_to_Python_programming_language.jpg'

[bcornec]

Is that Image still useful in our environment, or just for the HPE frontend ?
Do we have use case for having it ?

If yes, then:
Idea is to download all images from their current location, and put them under static/img/wod/WorkshopImages on the frontend using a naming convention : WKSHP-XXX.jpg
Then fix all the wod.yml files using just the name WKSHP-XXX.jpg (no URL is fine if local it will be found with the directory name, once we use it somewhere :-))