add(gitea-api): issues and milestones getters

This implements the api getters for extracting the issues and milestones
for a given gitea repository. WIP for #1.

README.md

@@ -1,3 +1,13 @@
 # gitwarrior
 
-Cli tool to sync git issues and milstones with taskwarrior tasks.
+Cli tool to sync git issues and milstones with taskwarrior tasks.
+
+## Building
+
+This project uses `make` to build. You can run `make` to build the application. You can run `make run` to start the cli after building the application. `make install` will require previledges to install the created binary and documentation to the corresponding places. The variable `INSTALL_PATH` in the [Makefile](Makefile) contains the directory used for the installation of the application.
+
+## Dependencies
+
+The goal should be to use to as least as possible external packages.
+
+- [urfave/cli](https://github.com/urfave/cli): cli building package