Updated README chapter status

README.md

@@ -41,8 +41,8 @@ The current status of the book is "RELEASE PREP". See below for status of specif
 | [Channel operation and HTLC settlement](09_channel_operation.asciidoc) | ####### | :heavy_check_mark: |
 | [Onion Construction and Routing](10_onion_routing.asciidoc) | ################ | :heavy_check_mark: |
 | [Channel Graph and Gossip Layer](11_gossip_channel_graph.asciidoc) | ############ | :heavy_check_mark: |
-| [Payment Path Finding](12_path_finding.asciidoc) | ############ | :lock_with_ink_pen: |
-| [LN Security and Privacy](13_security_privacy_ln.asciidoc) | ################ | :lock_with_ink_pen: |
+| [Payment Path Finding](12_path_finding.asciidoc) | ############ | :heavy_check_mark: |
+| [LN Security and Privacy](13_security_privacy_ln.asciidoc) | ################ | :heavy_check_mark: |
 | APPENDICES | APPENDICES | APPENDICES |
 | [A1 - Bitcoin Fundamentals Review](appendix-bitcoin-fundamentals-review.asciidoc) | ########### | :heavy_check_mark: |
 | [An - License Notices](appendix_license_notices.asciidoc) | # | :heavy_check_mark: |