chore: update readme template

Author: MateuszRostkowski

templates/readme_template.md

@@ -62,33 +62,59 @@ This template uses [Remix icon set](https://remixicon.com/)
 
 It is added to the app as a font generated by [icomoon app](https://icomoon.io/app/#/select).
 
-## Adding new icons
+- [adding new icon docs](https://baca-docs.vercel.app/docs/icons)
 
-1. Find `assets/icomoon/selection.json` file in your machine
-2. Import this file to this [page (icomoon app)](https://icomoon.io/app/#/select):
+<!-- TODO: Improve this step -->
 
-- Make sure there are no other icons imported there
+## Sync up with template:
 
-3. Download icon which need to be added to the app as svg file.
-4. Make sure new icon name is unique (already not used).
-5. Add svg file to icomoon app.
-6. Go to generate font tab - icomoon app.
+<details>
 
-- Make sure that all icons that you have added have correct names
+<summary>With git history</summary>
 
-7. Download font - icomoon app
-8. Replace old files with downloaded ones
+This tutorial is needed when you clone baca-react-native-template and you keep git repository
 
-- ./selection.json => assets/icomoon/selection.json
-- ./fonts/icomoon.ttf => assets/icomoon/icomoon.ttf
+1. Add template remote
 
-9. Generate new types for icons
+```bash
+git remote add template git@github.com:binarapps/baca-react-native-template.git
+```
 
-- run script generating icon types `yarn g icon-types` and pick icon types
+2. Go to new branch (for safety reason)
 
-<!-- TODO: Improve this step -->
+```bash
+git checkout -b "sync_with_template/1"
+```
 
-## Sync up with template:
+3. Fetch template remote
+
+```bash
+git fetch template
+```
+
+4. Merge with template
+
+```bash
+git merge template/main --no-commit
+```
+
+5. Review changes
+
+- There can be some issues with files that you were also working, make sure merge doesnt remove your logic
+
+6. Adjust and commit changes
+
+```bash
+git commit -m "chore: sync up with template code"
+```
+
+</details>
+
+<details>
+
+<summary>No git history</summary>
+
+This tutorial is needed when you don't have git history from baca-react-native-template
 
 1. Add template remote
 
@@ -124,6 +150,8 @@ git merge -X theirs template/main --allow-unrelated-histories --no-commit
 git commit -m "chore: sync up with template code"
 ```
 
+</details>
+
 <!--
 TODO: ISSUE-33 (https://github.com/binarapps/baca-react-native-template/issues/33)
 Replace this section witha a new UI lib instructions when this issue will be done.