Create README.md

[andrew-jameson]

Summary of Changes

Provide a brief summary of changes
This introduces a table of contents for the Technical-Documentation directory.

[codecov]

Codecov Report

Merging #1615 (81e0fd7) into raft-tdp-main (4eef5d2) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff               @@
##           raft-tdp-main    #1615   +/-   ##
==============================================
  Coverage          97.31%   97.31%           
==============================================
  Files                 80       80           
  Lines               1902     1902           
  Branches             249      249           
==============================================
  Hits                1851     1851           
  Misses                24       24           
  Partials              27       27           

Flag	Coverage Δ
dev-backend	99.10% <ø> (ø)
dev-frontend	94.01% <ø> (ø)

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[ADPennington]

lgtm 👍🏾