docs: update building documentation

docs/sources/installation/run_from_master.md

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+page_title: Run Grafana-Zabbix from master
+page_description: Building instructions for Grafana-Zabbix.
+
+# Run from master
+If you want to build a package yourself, or contribute - here is a guide for how to do that.
+
+### Dependencies
+
+- NodeJS LTS
+
+### Building plugin
+
+```bash
+npm install -g yarn
+yarn install --pure-lockfile
+yarn build
+```
+
+### To build plugin and rebuild on file change
+
+```bash
+yarn watch
+```
+
+### Run tests
+```bash
+yarn test
+```
+
+### Run tests on file change
+```bash
+yarn jest
+```