Add subcategories to docs (#617)

* Add subcategories to docs
Closes #227
With alerting being added, resources are getting more confused. By adding a subcategory, we can split them off in an `Alerting` section in the docs
Docs are still generated with `go generate` and will fail if a new resource doesn't have a category set in the `subcategories.json` file

* Add echos

* Install jq

* Fixes for macOS execution

Signed-off-by: Leandro López (inkel) <[email protected]>

Signed-off-by: Leandro López (inkel) <[email protected]>
Co-authored-by: Leandro López (inkel) <[email protected]>

Author: julienduchesne

.drone/drone.jsonnet

@@ -60,6 +60,7 @@ local pipeline(name, steps, services=[]) = {
         name: 'check for drift',
         image: images.go,
         commands: [
+          'apt update && apt install -y jq',
           'go generate',
           'gitstatus="$(git status --porcelain)"',
           'if [ -n "$gitstatus" ]; then',

.drone/drone.yml

@@ -29,6 +29,7 @@ platform:
 services: []
 steps:
 - commands:
+  - apt update && apt install -y jq
   - go generate
   - gitstatus="$(git status --porcelain)"
   - if [ -n "$gitstatus" ]; then
@@ -348,6 +349,6 @@ workspace:
   path: /drone/terraform-provider-grafana
 ---
 kind: signature
-hmac: 337e340b40f3e6e6fa45e74e98a2e4881bd7e45e1849b234042a39f94a0934e7
+hmac: 5305c32d78ea4fd8751e54de562674e698f9b4d415934d03568881933a7921f9
 
 ...