Fix markdown syntax.

Author: kevinbackhouse

README.md

@@ -17,11 +17,11 @@ We use it for these main purposes:
 ### Example queries
 
 * Java
-  * [Apache Struts CVE-2018-11776](CodeQL_Queries/java/Apache_Struts_CVE-2018-11776)
-* C/C++:
-  * [Apple XNU icmp_error CVE-2018-4407](CodeQL_Queries/cpp/XNU_icmp_error_CVE-2018-4407)
-  * [Facebook Fizz integer overflow vulnerability (CVE-2019-3560)](CodeQL_Queries/cpp/Facebook_Fizz_CVE-2019-3560)
-  * [Eating error codes in libssh2](CodeQL_Queries/cpp/libssh2_eating_error_codes)
+ * [Apache Struts CVE-2018-11776](CodeQL_Queries/java/Apache_Struts_CVE-2018-11776)
+* C/C++
+ * [Apple XNU icmp_error CVE-2018-4407](CodeQL_Queries/cpp/XNU_icmp_error_CVE-2018-4407)
+ * [Facebook Fizz integer overflow vulnerability (CVE-2019-3560)](CodeQL_Queries/cpp/Facebook_Fizz_CVE-2019-3560)
+ * [Eating error codes in libssh2](CodeQL_Queries/cpp/libssh2_eating_error_codes)
 * Javascript
   * [Etherpad CVE-2018-6835](CodeQL_Queries/javascript/Etherpad_CVE-2018-6835)
 * C#