Formatted all pages according to guidelines.

pages/common/gcc.md

@@ -2,14 +2,14 @@
 
 > Preprocesses and compiles C and C++ source files, then assembles and links them together.
 
-- Compile multiple source files into executable
+- Compile multiple source files into executable:
 
 `gcc {{source1.c}} {{source2.c}} -o {{executable}}`
 
-- Allow warnings, debug symbols in output
+- Allow warnings, debug symbols in output:
 
 `gcc {{source.c}} -Wall -Og -o {{executable}}`
 
-- Include libraries from a different path
+- Include libraries from a different path:
 
 `gcc {{source.c}} -o {{executable}} -I{{header_path}} -L{{library_path}} -l{{library_name}}`