docs: update install instructions

docs/install.md

@@ -6,6 +6,18 @@
 brew install kha7iq/tap/pingme
 ```
 
+## Shell Script
+By default pingme is going to be installed at `/usr/bin/` sudo is requried for this operation.
+
+If you would like to provide a custom install path you can do so as input to script. i.e `./install.sh $HOME/bin`
+```bash
+curl -s https://raw.githubusercontent.com/kha7iq/pingme/master/install.sh | sudo sh
+```
+or
+```bash
+curl -sL https://bit.ly/installpm | sudo sh
+```
+
 ## Linux
 
 * AUR
@@ -13,21 +25,18 @@ brew install kha7iq/tap/pingme
 yay -S pingme-bin
 ```
 
-* Binary
+## Manual
 ```bash
+# Chose desired version, architecture & target os
 export PINGME_VERSION="0.2.4"
-wget -q https://github.com/kha7iq/pingme/releases/download/v${PINGME_VERSION}/pingme_Linux_x86_64.tar.gz && \
-tar -xf pingme_Linux_x86_64.tar.gz && \
+export ARCH="x86_64"
+export OS="Linux"
+wget -q https://github.com/kha7iq/pingme/releases/download/v${PINGME_VERSION}/pingme_${OS}_${ARCH}.tar.gz && \
+tar -xf pingme_${OS}_${ARCH}.tar.gz && \
 chmod +x pingme && \
 sudo mv pingme /usr/local/bin/pingme
 ```
 
-## Go Get
-
-```bash
-go get -u github.com/kha7iq/pingme
-```
-
 ## Windows
 
 ```powershell