adding lionelvillard to approvers

[lionelvillard]

From ROLES.md

Reviewer of the codebase for at least 3 months.

First review: May 2019

• move apiserver source to eventing #1108

Primary reviewer for at least 10 substantial PRs to the codebase.

26 PRs:
https://github.com/knative/eventing/pulls?utf8=%E2%9C%93&q=is%3Apr+is%3Amerged+-author%3Alionelvillard+commenter%3Alionelvillard+-label%3Asize%2FS+-label%3Asize%2FXS+-label%3Asize%2FM+

Examples:

• Update ApiServerSource #1175
• Pipeline Implementation #1239
• Channel spec: iteration 1 #1420
• Default Channel support for Channel CRDs #1560
• ApiServerSource updates its receive adapter, if needed. #1576
• Tracking resources refactoring #2027
• Enable eventing when a Trigger is created for first time #2034
• move parallel/sequence to flows.knative.dev api group #2156
• Cloudevent 1.0 - Part1: Updating source to produce 1.0 payload #2259
• Remove support for deprecated fields in messaging Destinations #2300

Reviewed or merged at least 30 PRs to the codebase.

Merged 34 PRs:
https://github.com/knative/eventing/pulls?utf8=%E2%9C%93&q=is%3Apr+is%3Amerged+author%3Alionelvillard

Nominated by an area lead with no objections from other leads

/cc @grantr
/cc @Harwayne
/cc @matzew
/cc @n3wscott
/cc @vaikas
/cc @nachocano

[nachocano]

/lgtm
Well deserved @lionelvillard !!!

I'll let someone else to approve
Remember to add yourself to eventing-contrib approvers as well...

[vaikas]

/lgtm
/approve

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lionelvillard, vaikas

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Needs approval from an approver in each of these files:

• OWNERS [vaikas]

Approvers can indicate their approval by writing /approve in a comment
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[matzew]

LGTM ! :-)