[ImgBot] Optimize images

*Total -- 8,511.27kb -> 5,292.18kb (37.82%)

/workshop/fuse/images/s3fs/s3fs-mount-cos-bucket-cli.png -- 33.26kb -> 9.52kb (71.39%)
/workshop/.gitbook/cognitiveclass/waiting.png -- 21.59kb -> 7.95kb (63.15%)
/workshop/Lab1/images/lab1-guestbook-data-reload.png -- 181.58kb -> 82.50kb (54.56%)
/workshop/Lab2/images/lab2-guestbook-images-broken.png -- 124.47kb -> 56.91kb (54.28%)
/workshop/Lab1/images/lab1-guestbook-entries.png -- 197.76kb -> 90.79kb (54.09%)
/workshop/Lab1/images/lab1-guestbook-data-deleted.png -- 107.06kb -> 50.88kb (52.47%)
/workshop/Lab2/images/lab2-guestbook-images.png -- 1,282.77kb -> 665.68kb (48.11%)
/workshop/Lab3/images/newPod.png -- 78.49kb -> 43.26kb (44.89%)
/workshop/Lab3/images/testEntries.png -- 53.72kb -> 29.84kb (44.44%)
/workshop/.gitbook/assets/cloudant-create-db.png -- 107.97kb -> 62.05kb (42.53%)
/workshop/.gitbook/register/privacy-acknowledge.png -- 185.37kb -> 106.70kb (42.44%)
/workshop/.gitbook/register/personal-information.png -- 375.41kb -> 224.91kb (40.09%)
/workshop/.gitbook/assets/provision-cloudant-console.png -- 443.14kb -> 272.03kb (38.61%)
/workshop/.gitbook/register/create-account.png -- 325.71kb -> 201.05kb (38.27%)
/workshop/.gitbook/assets/verify-cloudant-on-console.png -- 264.27kb -> 164.58kb (37.72%)
/workshop/.gitbook/register/verify-email.png -- 390.24kb -> 243.80kb (37.52%)
/workshop/Lab5/images/cos-with-s3fs/ibmcloud-cos-bucket-datafiles.png -- 326.59kb -> 205.07kb (37.21%)
/workshop/.gitbook/assets/cloudant-service-creds.png -- 238.11kb -> 153.36kb (35.59%)
/workshop/.gitbook/register/create.png -- 421.91kb -> 275.14kb (34.79%)
/workshop/Lab3/images/archDiagram.png -- 50.85kb -> 33.22kb (34.67%)
/workshop/.gitbook/assets/cloudant-launch-dashboard.png -- 277.24kb -> 181.41kb (34.57%)
/workshop/.gitbook/cognitiveclass/sandboxList.png -- 57.96kb -> 37.93kb (34.56%)
/workshop/.gitbook/register/dashboard.png -- 449.12kb -> 297.90kb (33.67%)
/workshop/.gitbook/assets/verify-cloudant-creds-console.png -- 397.78kb -> 265.70kb (33.2%)
/workshop/.gitbook/cognitiveclass/newTerminal.png -- 23.61kb -> 15.92kb (32.58%)
/workshop/.gitbook/cognitiveclass/biggerTerminal.png -- 27.07kb -> 18.49kb (31.7%)
/workshop/.gitbook/register/login.png -- 69.04kb -> 47.36kb (31.4%)
/workshop/Lab5/images/cos-plugin-architecture.png -- 256.72kb -> 176.44kb (31.27%)
/workshop/.gitbook/assets/install-cloudant-console.png -- 269.40kb -> 186.69kb (30.7%)
/workshop/.gitbook/assets/catalog-cloudant.png -- 424.77kb -> 297.53kb (29.95%)
/workshop/Lab5/images/cluster/ocp_copy_oclogin.png -- 49.97kb -> 35.06kb (29.83%)
/workshop/.gitbook/cognitiveclass/cogClassButton.png -- 97.32kb -> 68.40kb (29.72%)
/workshop/.gitbook/assets/cloudant-copy-url.png -- 295.93kb -> 208.14kb (29.67%)
/workshop/fuse/images/s3fs/s3fs-mount-cos-bucket.png -- 17.89kb -> 12.61kb (29.5%)
/workshop/.gitbook/cognitiveclass/cogClassButton2.png -- 66.47kb -> 47.24kb (28.94%)
/workshop/Lab5/images/cos-with-s3fs/theia-open-my-pvc.png -- 148.45kb -> 107.31kb (27.71%)
/workshop/Lab5/images/cluster/ocp_displaytoken.png -- 9.06kb -> 6.64kb (26.68%)
/workshop/Lab5/images/cos-with-s3fs/theia-open-dir.png -- 143.01kb -> 106.20kb (25.74%)
/workshop/Lab5/images/cluster/ocp_copylogincommand.png -- 43.77kb -> 33.45kb (23.57%)
/workshop/fuse/images/fuse-arch.png -- 43.65kb -> 37.19kb (14.8%)
/data/images/gb2.jpg -- 21.00kb -> 19.16kb (8.77%)
/data/images/gb1.jpg -- 56.92kb -> 53.69kb (5.68%)
/data/images/gb3.jpg -- 54.87kb -> 52.46kb (4.4%)

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