docs(clone): clarify push behavior for modes

Amolith created

Contributor mode pushes to all selected remotes (fork copies). Own mode
pushes only to additional remotes (mirrors), not the first.

Assisted-by: Claude Opus 4.5 via Amp

Change summary

README.md       |  6 ++++--
src/wt/help.lua | 14 ++++++++++++--
2 files changed, 16 insertions(+), 4 deletions(-)

Detailed changes

README.md 🔗

@@ -62,18 +62,20 @@ chmod +x ~/.local/bin/wt
 
 ### Clone workflows
 
-**Contributing to others' projects:**
+**Contributing to others' projects (default):**
 
 ```
 wt c https://github.com/org/repo.git
 # origin → upstream, your remotes added from config
+# Pushes default branch to ALL selected remotes (creates fork copies)
 ```
 
 **Your own projects:**
 
 ```
 wt c git@github.com:you/repo.git --own
-# First configured remote becomes origin
+# First selected remote becomes origin (no push to it)
+# Pushes only to additional remotes (mirrors)
 ```
 
 ### Adding worktrees

src/wt/help.lua 🔗

@@ -38,8 +38,18 @@ M.COMMAND_HELP = {
 		"Options:",
 		"  --remote <name>    Add configured remote from ~/.config/wt/config.lua",
 		"                     Can be specified multiple times",
-		"  --own              Treat as your own project: first remote becomes 'origin'",
-		"                     (default: 'origin' renamed to 'upstream', your remotes added)",
+		"  --own              Treat as your own project (see Push Behavior below)",
+		"",
+		"Push Behavior:",
+		"  Contributor mode (default):",
+		"    - 'origin' renamed to 'upstream'",
+		"    - Selected remotes added from config",
+		"    - Pushes default branch to ALL selected remotes (creates fork copies)",
+		"",
+		"  Own mode (--own):",
+		"    - 'origin' renamed to first selected remote",
+		"    - Additional remotes added from config",
+		"    - Pushes only to ADDITIONAL remotes (mirrors), not the first",
 		"",
 		"Examples:",
 		"  wt c https://github.com/user/repo.git",