docs: added snap and reorganized macports

README.md

@@ -24,19 +24,11 @@ Terminal stock watcher and stock position tracker
 
 Download the pre-compiled binaries from the [releases page](https://github.com/achannarasappa/ticker/releases) and copy to a location in `PATH` or see quick installs below
 
-**mac**
-
-...via [Homebrew](https://brew.sh):
+**homebrew**
 ```
 brew install achannarasappa/tap/ticker
 ```
 
-...via [MacPorts](https://www.macports.org):
-```
-sudo port selfupdate
-sudo port install ticker
-```
-
 **linux**
 ```sh
 curl -Ls https://api.github.com/repos/achannarasappa/ticker/releases/latest \
@@ -52,6 +44,20 @@ curl -Ls https://api.github.com/repos/achannarasappa/ticker/releases/latest \
 docker run -it --rm achannarasappa/ticker
 ```
 
+**snap**
+```sh
+sudo snap install ticker
+```
+
+### Third-party repositories
+These repositories are maintained and updated by a third-party and may not have the latest versions available
+
+**MacPorts**
+```
+sudo port selfupdate
+sudo port install ticker
+```
+
 ## Quick Start
 
 ```sh