Merge pull request #228 from lehors/readme-update

Update README

README.md

@@ -1,10 +1,12 @@
 # OpenSSF Technical Advisory Council (TAC)
 
-The OpenSSF Technical Advisory Council is responsible for oversight of the various Technical Initiatives of the OpenSSF.
+The OpenSSF Technical Advisory Council is responsible for oversight of the various Technical Initiatives (TI) of the OpenSSF.
 
 
 ## Get Involved
 
+Although the TAC is composed of a set of official members listed below, any community member is welcome to participate in the TAC discussions.
+
 Official communications occur on the [TAC mailing list](https://lists.openssf.org/g/openssf-tac/topics). [Manage your subscriptions to Open SSF mailing lists](https://lists.openssf.org/g/main/subgroups).
 
 Informal discussions occur in the TAC channel of the [OpenSSF Slack](https://slack.openssf.org/).
@@ -41,6 +43,8 @@ The TAC is chartered as part of the [Open Source Security Foundation Charter](ht
 
 ## Technical Initiatives
 
+The governance of TIs is documented in [the process section](process). This section provides you with all the information about the different types of initiatives and how they are managed, as well as how to propose a new initiative. It also covers the different levels of maturity a TI can be in, the requirements that must be met to move up to the next level, as well as the benefits that come with each level. 
+
 The following Technical Initiatives have been approved by the TAC:
 
 ### Working Groups