diff --git a/Electronics_and_Hardware/Analogue_circuits/Voltage.md b/Electronics_and_Hardware/Analogue_circuits/Voltage.md
index 2abd863..2fec9be 100644
--- a/Electronics_and_Hardware/Analogue_circuits/Voltage.md
+++ b/Electronics_and_Hardware/Analogue_circuits/Voltage.md
@@ -5,8 +5,6 @@ categories:
 tags: [physics, electricity]
 ---
 
-# Voltage
-
 ## Difference of potential and the tranfer of energy
 
 We noted in the discussion of [current](/Electronics_and_Hardware/Analogue_circuits/Current.md) that current flows when there is a difference of potential between two points with negatively charged atoms at one point and positively charged atoms at the other.
diff --git a/Programming_Languages/Shell/Test.md b/Programming_Languages/Shell/Test.md
index 510b6ae..78cb156 100644
--- a/Programming_Languages/Shell/Test.md
+++ b/Programming_Languages/Shell/Test.md
@@ -68,6 +68,6 @@ When we use **double brackets** we are using _extended_ `test`.
 The extended test supports the standard `test` comparisons and adds other features:
 
 - The use of Boolean operators:
-  ```bash
+  ```
   [[ -d ~ || -a /bin/mash ]]; echo $?
   ```