Initial procedure draft

simplified-process.md

+```mermaid
+graph TB
+  start("Start")
+  reserve["Reserve 'contribution name' in portal"]
+  createBranch["Create contribution branch<br />named as 'contribution name' "]
+  submitChanges["Submit/update changes<br />to contribution branch"]
+  hasComments["If public,<br />comments might already be provided"]
+  isReady{"Is contribution<br />ready?"}
+  reject["Declare rejected"]
+  approve["Declare approved"]
+  revision("WG discuss contribution")
+  approval{"Is contribution<br />approved?"}
+  submitContrib["Create Merge-request<br />named as contribution branch"]
+  blockContribution["Lock contribution branch"]
+  unlockMR["Unlock contribution branch"]
+  uploadCR["Upload CR to portal<br />(autogenerated in Merge-request)"]
+  reviseContrib["Rename Merge-request<br />to add revision number"]
+  existsMR{"Does a Merge-request<br />exists?"}
+  closeMR["Close Merge-request"]
+  applyMR["Apply Merge-request"]
+  newBaseline{"New baseline?"}
+  makeBaseline["Tag release branch"]
+  stop("Stop")
+  conflict{"Is there any conflict?"}
+  fixConflict["Rebase contribution branch/fix conflict"]
+  start-->reserve
+  reserve-->createBranch
+  createBranch-->submitChanges
+  hasComments-->submitChanges
+  submitChanges-->isReady
+  isReady--Ready-->blockContribution
+  blockContribution-->existsMR
+  existsMR--Yes-->uploadCR
+  existsMR--No-->submitContrib
+  isReady--"comments or not finished"-->submitChanges
+  uploadCR-->revision
+  submitContrib-->uploadCR
+  revision-->approval
+  approval--Yes-->approve
+  approval--No-->reject
+  approve-->applyMR
+  applyMR-->conflict
+  approval--"Revision required"-->reviseContrib
+  reviseContrib-->unlockMR
+  unlockMR-->submitChanges
+  reject-->closeMR
+  closeMR-->stop
+  conflict--No-->newBaseline
+  conflict--Yes-->fixConflict
+  fixConflict-->revision
+  newBaseline--Yes-->makeBaseline
+  newBaseline--No-->stop
+  makeBaseline-->stop
+```
+