Fixup f9fbcbf: use HTML character entity

aqrln · aqrln · commit 24cc662c84b5 · 2017-02-22T14:19:38.000+02:00
As it turned out, GitHub's Markdown parser ignores backslashed
sequences in titles though they work for many other special characters.
This commit changes them to HTML character entities.

Additionally, the TOC in README.md is updated to use 'C#' spelling
instead of 'CSharp'.
diff --git a/CSharp/README.md b/CSharp/README.md
@@ -1,4 +1,4 @@
-# C\# Development Tools
+# C&#35; Development Tools
 | [English](README.md) | [Русский](README.ru.md) |
 
 Required software:
diff --git a/CSharp/README.ru.md b/CSharp/README.ru.md
@@ -1,4 +1,4 @@
-# Инструменты разработчика C\#
+# Инструменты разработчика C&#35;
 | [English](README.md) | [Русский](README.ru.md) |
 
 Обязательные компоненты:
diff --git a/README.md b/README.md
@@ -10,4 +10,4 @@ Here are development tools and environment configuration for following languages
   6. [Swift](Swift/README.md)
   7. [Java](Java/README.md)
   8. [Lisp](Lisp/README.md)
-  9. [CSharp](CSharp/README.md)
+  9. [C&#35;](CSharp/README.md)

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# C\# Development Tools`
	`1`	`+# C# Development Tools`
`2`	`2`	`\| [English](README.md) \| [Русский](README.ru.md) \|`
`3`	`3`
`4`	`4`	`Required software:`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Инструменты разработчика C\#`
	`1`	`+# Инструменты разработчика C#`
`2`	`2`	`\| [English](README.md) \| [Русский](README.ru.md) \|`
`3`	`3`
`4`	`4`	`Обязательные компоненты:`