Improve readme files for better clarity and usage examples

Related to #929

Update README.md files to provide better guidance on using wordlists.

* **Discovery/Web-Content/README.md**
  - Add sections "Overview," "Usage," "Source," and "References" for each wordlist.
  - Include examples and tutorials for using the wordlists.
  - Provide step-by-step instructions and command examples.

* **Discovery/DNS/README.md**
  - Add sections "Overview," "Usage," "Source," and "References" for each wordlist.
  - Include examples and tutorials for using the wordlists.
  - Provide step-by-step instructions and command examples.

* **Discovery/Web-Content/api/README.md**
  - Add sections "Overview," "Usage," "Source," and "References" for each wordlist.
  - Include examples and tutorials for using the wordlists.
  - Provide step-by-step instructions and command examples.

* **Discovery/Web-Content/URLs/README.md**
  - Add sections "Overview," "Usage," "Source," and "References" for each wordlist.
  - Include examples and tutorials for using the wordlists.
  - Provide step-by-step instructions and command examples.

Discovery/Web-Content/README.md

@@ -2,11 +2,8 @@
 
 ## combined_words.txt
 
-Use for: discovering files    
-This list is automatically updated by a github action whenever any of the lists it's composed by is modified.
-
+### Overview
 This list is a combination of the following wordlists:
-
 - big.txt
 - common.txt
 - raft-large-words-lowercase.txt
@@ -16,12 +13,15 @@ This list is a combination of the following wordlists:
 - raft-small-words-lowercase.txt
 - raft-small-words.txt
 
+### Usage
+Use for: discovering files
+
+### Source
+This list is automatically updated by a GitHub action whenever any of the lists it's composed by is modified.
 
 ## combined_directories.txt
 
-Use for: discovering files and directories    
-This list is automatically updated by a github action whenever any of the lists it's composed by is modified.
-
+### Overview
 This list is a combination of the following wordlists:
 - apache.txt
 - combined_words.txt
@@ -36,20 +36,34 @@ This list is a combination of the following wordlists:
 - raft-small-directories-lowercase.txt
 - raft-small-directories.txt
 
+### Usage
+Use for: discovering files and directories
+
+### Source
+This list is automatically updated by a GitHub action whenever any of the lists it's composed by is modified.
+
 ## dsstorewordlist.txt
 
-SOURCE: https://github.com/aels/subdirectories-discover
-
+### Overview
 Perfect wordlist to discover directories and files on target site with tools like ffuf.
+
+### Usage
+Use for: discovering directories and files
+
+### Source
+Source: https://github.com/aels/subdirectories-discover
+
+### References
 - It was collected by parsing Alexa top-million sites for **.DS_Store** files (https://en.wikipedia.org/wiki/.DS_Store), extracting all the found files, and then extracting found file and directory names from around 300k real websites.
 - Then sorted by probability and removed strings with one occurrence.
 - resulted file you can download is below. Happy Hunting!
 
 ## vulnerability-scan_j2ee-websites_WEB-INF.txt
+
+### Overview
 Use for: discovering sensitive j2ee files exploiting a lfi
 
-References: 
-    
+### References
 - https://gist.github.com/harisec/519dc6b45c6b594908c37d9ac19edbc3
 - https://github.com/projectdiscovery/nuclei-templates/blob/master/vulnerabilities/generic/generic-j2ee-lfi.yaml
 - https://github.com/ilmila/J2EEScan/blob/master/src/main/java/burp/j2ee/issues/impl/LFIModule.java