[Lucyeoh]

Removed Lucy as point of contact and replaced the option of reaching out to any secretariat staff member with link to our page.

Fixes # 1

Changes proposed in this pull request:

• Removed Lucy's GitHub
• Added link to Secretariat page and updated language
• Kept hello@ email.

Propagation of Changes

Identify where of the following the proposed changes need to be propagated, and include the relevant pull request where appropriate:

• The DPGA website contains https://digitalpublicgoods.net/standard/ which needs to be updated manually matching the contents of standard.md.
• The DPGA website also contains the submission guide which needs to be updated manually.
• The DPG application webapp admin panel which will be updated manually.
• The Eligibility Form through the unicef/publicgoods-scripts repository, by editing quizQuestions.js