Update README

README.md

@@ -22,3 +22,33 @@ standard output.  The current emoji table is as follows:
 ⛪🆗🎀💊💉🔔🔬🕯◀▶⬅⬆⬇↗↖↘  
 ↙↩↪🔄⏩⏪⏫⏬⏸✨☮☢☯✡⚓⚙  
 🎢🎡🎪🚩🎬🎮🎰🎱🎵🎺🎿🏋🏭👅👀👯  
+
+### Example
+
+```
+$ echo 'my string' | cargo run
+🍷⌛🎸🎄🎅🎃🍅🍺🍐👈
+```
+
+Some possible real-world uses of this could include:
+
+#### SSH Key Validation
+
+```
+$ ssh-keygen -E sha256 -l -f ~/.ssh/id_main_rsa | awk -F'[ :]' '{print $3}' | base64 -d | emoji256
+⭐👿🍪📋✈✔✔🎁🎊🍞↪📷☔💣🔑🏋👀🍪🍸🍪✂🎻↘🌮🌽🎥💳🚽↪⏰🐫⌛
+```
+
+#### Hash Comparison
+
+```
+$ sha256sum Cargo.toml | cut -d' ' -f1 | xxd -r -p | emoji256
+🤖🐊🐢↩🕸🐟♣☀↙🍄⬅🍸👯⏰👑✂🔍🍅🎰❓🍉📏🌵🏈❤🎂🌮🎈⛪👇🔧🎂
+```
+
+#### GPG Key Fingerprints
+
+```
+$ gpg --list-keys --with-colons pacman@localhost | grep '^fpr' | cut -d':' -f10 | xxd -r -p | emoji256
+🍭🐦☕🏐✍🎁👣✔◀🎂💅🎊🌴🍝➖🌽🍣🎓♦🍁
+```

ci/script.sh

@@ -17,9 +17,12 @@ main() {
     ls -alh ./target/$TARGET/release || true
 
     # We can't use 'cross run' because we need to pass a string to the binary
-    # on stdin.  Just run the output manually.
-    # TODO: this fails on ONLY a single target for reasons that I can't be
-    # arsed to figure out right now.  Just don't attempt it there.
+    # on stdin, which doesn't currently work:
+    #   https://github.com/japaric/cross/issues/52
+    #
+    # As a result, and since Linux can't run i686 binaries on a x64 host, we
+    # blacklist the specific target.  It's possible we could add more logic
+    # here, but this works for now.
     if [ "$TARGET" != "i686-unknown-linux-gnu" ]; then
         echo 'Foobar' | ./target/$TARGET/debug/emoji256
         echo 'Foobar' | ./target/$TARGET/release/emoji256