selfupdate is broken #174 : adjust README to remove token trick

Makesurefile

@@ -181,7 +181,10 @@
 
 @goal README.md @private
 @doc 'compiles release version of README.md'
-  $AWK '
+  $AWK -v NEXT_VERSION="$NEXT_VERSION" '
+    {
+      gsub(/raw\.githubusercontent\.com\/xonixx\/makesure\/[^\/]+\//, "raw.githubusercontent.com/xonixx/makesure/v" NEXT_VERSION "/")
+    }
     /^\$ \.\/makesure -h$/ { print; stop=1; system("./makesure -h") }
     /^```$/ { stop=0 }
     !stop' README.md > README.md.1

README.md

@@ -76,12 +76,12 @@ Usage: makesure [options...] [-f buildfile] [goals...]
 Since `makesure` is a tiny utility represented by a single file, the recommended installation strategy is to keep it local to a project where it's used (this means in code repository). Not only this eliminates the need for repetitive installation for every dev on a project, but also allows using separate `makesure` version per project and update only as needed.
 
 ```sh
-wget "https://raw.githubusercontent.com/xonixx/makesure/main/makesure?token=$(date +%s)" -Omakesure && \
+wget "https://raw.githubusercontent.com/xonixx/makesure/v0.9.23/makesure" -Omakesure && \
 chmod +x makesure && echo "makesure $(./makesure -v) installed"
 ```
 or
 ```sh
-curl "https://raw.githubusercontent.com/xonixx/makesure/main/makesure?token=$(date +%s)" -o makesure && \
+curl "https://raw.githubusercontent.com/xonixx/makesure/v0.9.23/makesure" -o makesure && \
 chmod +x makesure && echo "makesure $(./makesure -v) installed"
 ```
 
@@ -659,7 +659,7 @@ Install Bash completion for `./makesure` locally
 ```sh
 [[ ! -f ~/.bash_completion ]] && touch ~/.bash_completion
 grep makesure ~/.bash_completion >/dev/null || echo '. ~/.makesure_completion.bash' >> ~/.bash_completion
-curl "https://raw.githubusercontent.com/xonixx/makesure/main/completion.bash?token=$(date +%s)" -o ~/.makesure_completion.bash  
+curl "https://raw.githubusercontent.com/xonixx/makesure/v0.9.23/completion.bash" -o ~/.makesure_completion.bash  
 echo 'Please reopen the shell to activate completion.'
 ```