writing-test-plans: Update manifest with new parameters and descriptions

Author: laurentsenta

getting-started.md

@@ -123,13 +123,17 @@ Testground tries to load this file from `$TESTGROUND_HOME/.env.toml`, where `$TE
 
 ### Changing default daemon bind addresses
 
-You can change the default bind addresses by configuring `daemon.listen` and `client.endpoint`
+You can change the default values by configuring `daemon.listen`, `client.endpoint` and `daemon.scheduler`
 
 ###### .env.toml
 ```toml
 [daemon]
 listen = ":8080"
 
+[daemon.scheduler]
+task_timeout_min          = 5
+task_repo_type            = "disk"
+
 [client]
 endpoint = "http://localhost:8080"
 ```

writing-test-plans/test-plan-manifest.md

@@ -29,13 +29,9 @@ The next few sections are options passed to each builder and runner when they ar
 ```toml
 [builders."docker:go"]
 enabled = true
-go_version = "1.14"
-module_path = "github.com/your/module/name"
-exec_pkg = "."
 
 [builders."exec:go"]
 enabled = true
-module_path = "github.com/your/module/name"
 
 [runners."local:docker"]
 enabled = true
@@ -50,11 +46,28 @@ enabled = true
 ### Test cases
 
 Finally, we have [test cases](../concepts-and-architecture/test-structure.md#test-cases). Test cases are defined in an [array of tables](https://github.com/toml-lang/toml#array-of-tables) which specify the name of the test case, boundaries for the number of instances and the values of any parameters being tested in a particular test case.
+If your plan requires an integer param without a default value, the test will fail if you do not provide it.
 
 ```toml
 [[testcases]]
 name= "quickstart"
 instances = { min = 1, max = 5, default = 1 }
+
+[testcases.params]
+  conn_count       = { type = "int", desc = "number of TCP sockets to open" default = 5 }
+  conn_outgoing    = { type = "int", desc = "number of outgoing TCP dials", default = 5 }
+  conn_delay_ms       = { type = "int", desc = "random milliseconds jitter before TCP dial", default = 30000 }
+  concurrent_dials = { type = "int", desc = "max number of concurrent net.Dial calls", default = 10 }
+  data_size_kb     = { type = "int", desc = "size of data to write to each TCP connection", default = 128 }
+  barrier_iterations = { type = "int", desc = "number of iterations of the barrier test", unit = "iteration", default = 10 }
+  barrier_test_timeout_secs  = { type = "int", desc = "barrier testcase timeout", unit = "seconds", default = 300 }
+  subtree_iterations = { type = "int", desc = "number of iterations of the subtree test", unit = "iteration", default = 2000 }
+  subtree_test_timeout_secs  = { type = "int", desc = "subtree testcase timeout", unit = "seconds", default = 300 }
+  expected_version = { type = "string", desc = "expected version" }
+  expected_implementation = { type = "string", desc = "expected implementation" }
+  messages   = { type = "int", default = 50 }
+  ...
+
 ```
 
 ### The resulting `manifest.toml`  test plan manifest