Fixed docs and patched bug in bash profile

.bash_profile

@@ -16,7 +16,7 @@ PATH="$HOME/bin:$HOME/.local/bin:$PATH"
 
 [[ $- != *i* ]] && return
 if [[ -z "$TMUX" ]] ; then
-    tmux has-session &> /dev/null
+    tmux has-session -t "one" &> /dev/null
     if [ $? -eq 1 ]; then
         exec tmux new-session -s "one"
         exit

.gitignore

@@ -0,0 +1 @@
+.ssh/known_hosts

README.md

@@ -15,12 +15,12 @@ $ ssh-keygen -t ed25519
 
 1. Add your public key to the authorized_keys file:
 ```bash
-$ cat ~/.ssh/id_ed25519.pub >> authorized_keys
+$ cat ~/.ssh/id_ed25519.pub >> .ssh/authorized_keys
 ```
 
 1. Add, commit, and push your changes:
 ```bash
-$ git add authorized_keys
+$ git add .ssh/authorized_keys
 $ git commit -m "Added SSH keys for <your name>"
 $ git push origin master
 ```