Update doc: conf.toml detail

doc%3A-conf.toml-detail.md

@@ -1 +1,20 @@
-Welcome to the Wiki.
+`conf.toml` file contains the details of steps that should be executed to the newly pushed code. This file will be placed in the repo of each student.
+
+The `conf.toml` file will begin with:
+```
+logLevel = -4
+sandboxExecServer = "172.17.0.1:5051"
+```
+which helps logging into the server.
+
+In the file, there will be many stages stating each parser to run. To be more specific, the parsers below:
+```
+- clangtidy
+- cppcheck
+- cpplint
+- diff
+- dummy
+- healthcheck
+- keyword
+- resultstatus
+```