add check list

docs/checklist/first_lab.md

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+## First Lab CheckList
+
+
+## Task 
+
+### compulsory
+
+[] Write AA meeting record table and email to AA
+[] Learn Markdown & Git
+[] Find all component models
+[] Build all component models that not provided
+[] Finish the circuit except the BPF and impedance
+[] Simulate to get the BPF band range
+[] Design BPF and insert to circuit
+--------------
+
+### optional
+
+[] Simulate the circuit and evaluate the result
+[] Design the circuit to be 50ohms
+[] Simulate the circuit
+[] check and order the components we need