Restore https:// now that git.pic.ngo has a TLS certificate

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

QUICKSTART.md

@@ -17,13 +17,13 @@ The installer handles all software dependencies (git, docker, make, etc.) automa
 ## Option A — One-line installer (recommended)
 
 ```bash
-curl -fsSL http://install.pic.ngo | sudo bash
+curl -fsSL https://install.pic.ngo | sudo bash
 ```
 
 Always review the script before running it:
 
 ```bash
-curl -fsSL http://install.pic.ngo | less
+curl -fsSL https://install.pic.ngo | less
 ```
 
 The installer:
@@ -47,7 +47,7 @@ http://<host-ip>:8081/setup
 Use this if you want to control where PIC is installed, or if you are installing on a machine that already has Docker.
 
 ```bash
-git clone http://git.pic.ngo/roof/pic.git pic
+git clone https://git.pic.ngo/roof/pic.git pic
 cd pic
 sudo make install
 make start-core