make consistent example names

Author: refraction-ray

.github/workflows/ci.yml

@@ -45,8 +45,6 @@ jobs:
           python mcnoise_boost.py
           python quantumng.py
           python universal_lr.py
-      #   python GHZ_DQAS.py
-      #   python QEM_DQAS.py
       - name: setup build
         run: |
           python3 setup.py build

README.md

@@ -37,7 +37,7 @@ For more information and introductions, please refer to helpful [example scripts
 
 The following are some minimal demos.
 
-Circuit manipulation:
+- Circuit manipulation:
 
 ```python
 import tensorcircuit as tc
@@ -50,15 +50,15 @@ print(c.expectation_ps(z=[0, 1]))
 print(c.sample())
 ```
 
-Runtime behavior customization:
+- Runtime behavior customization:
 
 ```python
 tc.set_backend("tensorflow")
 tc.set_dtype("complex128")
 tc.set_contractor("greedy")
 ```
 
-Automatic differentiations with jit:
+- Automatic differentiations with jit:
 
 ```python
 def forward(theta):

examples/bp_validation.py

@@ -1,3 +1,7 @@
+"""
+Compute the circuit gradient with single qubit random Haar averaged to
+demonstrate the gradient vanishing, aka, barren plateau.
+"""
 import numpy as np
 from tqdm import tqdm
 import tensorcircuit as tc

examples/GHZ_DQAS.py examples/ghz_dqas.py

@@ -1,3 +1,6 @@
+"""
+DQAS for GHZ state preparation circuit, deprecated DQAS implementation
+"""
 import sys
 
 sys.path.insert(0, "../")

examples/hchainhamiltonian.py

@@ -1,5 +1,5 @@
 """
-Get molecule qubit format Hamiltonian from open fermion.
+Get molecule qubit format Hamiltonian from openfermion.
 """
 
 import time

examples/QEM_DQAS.py examples/qem_dqas.py

@@ -1,3 +1,6 @@
+"""
+DQAS for QFT QEM circuit design, deprecated DQAS implementation
+"""
 import sys
 
 sys.path.insert(0, "../")