update docs/examples & terraform/ansible (#1534)

* update docs/examples

* ansible: add node IDs from docs/examples

* better monikers

* ansible: clearer paths

* upgrade version

* examples: updates

* docs: consolidate terraform & ansible

* remove deprecated info, small reorgs

* docs build fix

* docs: t&a critical commit

* s/dummy/kvstore/g

* terraform/DO region unavailable, persistent error can't be bothered to debug rn

* terraform: need vars

* networks: t&a standalone integration script for DO

* t&a more updates

* examples: add script that shows what the testnet command does

* use AMS3, since AMS2 is not available

docs/examples/node3/config/priv_validator.json

@@ -0,0 +1,14 @@
+{
+  "address": "9A1A6914EB5F4FF0269C7EEEE627C27310CC64F9",
+  "pub_key": {
+    "type": "AC26791624DE60",
+    "value": "KGAZfxZvIZ7abbeIQ85U1ECG6+I62KSdaH8ulc0+OiU="
+  },
+  "last_height": 0,
+  "last_round": 0,
+  "last_step": 0,
+  "priv_key": {
+    "type": "954568A3288910",
+    "value": "jb52LZ5gp+eQ8nJlFK1z06nBMp1gD8ICmyzdM1icGOgoYBl/Fm8hntptt4hDzlTUQIbr4jrYpJ1ofy6VzT46JQ=="
+  }
+}